Global IP Holdings LLC v. Columbia Care Eastern Virginia LLC

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: Global IP Holdings, LLC (California)
  • Defendant: Columbia Care Eastern Virginia, LLC (Virginia)
  • Plaintiff's Counsel: DNL Zito
• Case Identification: 1:26-cv-02277, E.D. Va., 07/27/2026
• Venue Allegations: Venue is asserted based on Defendant's incorporation in Virginia, its maintenance of a regular and established place of business within the district, and its commission of alleged infringing acts in the district.
• Core Dispute: Plaintiff alleges that Defendant's process for producing cannabis extracts infringes two patents related to low-temperature ethanol extraction methods designed to improve product purity.
• Technical Context: The technology involves using super-cooled ethanol to selectively extract cannabinoids and terpenes from plant matter while minimizing the co-extraction of undesirable compounds like chlorophyll and waxes, a key process for producing high-quality cannabis concentrates.
• Key Procedural History: The patents-in-suit, U.S. Patent Nos. 10,507,407 and 10,814,248, are related, with the '407 patent being a divisional of an earlier application and the '248 patent being a continuation-in-part of the application that led to the '407 patent. This family relationship suggests a shared technical disclosure, which may be relevant to claim construction across both patents. The complaint does not mention any other prior litigation, licensing history, or administrative proceedings.

Case Timeline

Date	Event
2016-04-14	Earliest Priority Date for '407 Patent and '248 Patent
2019-12-17	U.S. Patent No. 10,507,407 Issued
2020-10-27	U.S. Patent No. 10,814,248 Issued
2026-07-27	Complaint Filed

II. Technology and Patent(s)-in-Suit Analysis

U.S. Patent No. 10,507,407 - "Methods to reduce chlorophyll co-extraction through extraction of select moieties essential oils and aromatic isolates"

• Patent Identification: U.S. Patent No. 10,507,407 ("'407 Patent"), issued December 17, 2019 Compl. ¶12

The Invention Explained

• Problem Addressed: The patent's background describes drawbacks of prior art cannabis extraction methods Compl. ¶11 It notes that hydrocarbon-based methods (e.g., using butane) are dangerous due to volatility, and that other methods, such as those using supercritical CO2, require expensive machinery and significant post-processing to remove undesirable co-extracted compounds like plant lipids and waxes '407 Patent, col. 1:19-44
• The Patented Solution: The invention proposes a method that uses super-cooled ethanol as a solvent to extract desirable compounds (cannabinoids, terpenes) from plant material '407 Patent, abstract By lowering the temperature of the solvent and plant substrate to a range between -30°C and -50°C, the process can selectively extract the target moieties while leaving behind waxes and chlorophyll, which have lower solubility at these temperatures '407 Patent, col. 2:6-9 This is intended to produce a cleaner, purer extract without the need for extensive post-processing steps '407 Patent, col. 1:58-62 Figure 1 of the patent illustrates a system designed for this purpose, including a freezer compartment (1.L) to achieve the necessary low temperatures '407 Patent, Fig. 1
• Technical Importance: This approach seeks to provide a safer and more efficient method for producing high-purity cannabis extracts by leveraging the temperature-dependent solubility of various plant constituents in an ethanol solvent Compl. ¶¶10-11

Key Claims at a Glance

• The complaint asserts infringement of at least independent claim 1 Compl. ¶40
• The essential elements of claim 1, as corrected by a Certificate of Correction, are:
  • A safer and more reliable extraction process for extracting a plant substrate, comprising:
  • (i) pre-processing comprising lowering the temperature of a solvent to a range of -30 degrees C. and -50 degrees C.,
  • (ii) contacting at -30 degrees C. to -50 degrees C. wherein there is a contacting time between the plant substrate and the solvent to create an emulsion,
  • (iii) evaporating for reduction of the emulsion by means of atmospheric evaporation of the solvent,
  • (iv) recovering for recovery of the solvent from the emulsion,
  • (v) purging whereby a resultory extract is substantially free of any lipids and chlorophyll.
    '407 Patent, col. 8:13-28, as corrected
• The complaint alleges infringement of "one or more claims" of the patent, suggesting a potential future assertion of dependent claims Compl. ¶41

U.S. Patent No. 10,814,248 - "Methods to reduce chlorophyll co-extraction through extraction of select moieties essential oils and aromatic isolates"

• Patent Identification: U.S. Patent No. 10,814,248 ("'248 Patent"), issued October 27, 2020 Compl. ¶16

The Invention Explained

• Problem Addressed: As a continuation-in-part of the '407 patent's application, the '248 Patent addresses the same technical problem: the need for a safe and efficient extraction process that avoids co-extracting undesirable compounds like chlorophyll and lipids from plant material '248 Patent, col. 1:30-56
• The Patented Solution: The '248 Patent also teaches a method based on cold ethanol extraction, specifying a core temperature range of -30°C to -50°C for contacting the solvent and plant substrate '248 Patent, claim 1 This patent further refines the invention by explicitly excluding the use of liquid carbon dioxide and by introducing an "optional" clause that describes specific solvent compositions, such as a mixture of "95% ethanol and 5% of a solvent that is another solvent that does not comprise ethanol" '248 Patent, col. 24:1-24
• Technical Importance: This patent appears to build on the foundation of the '407 Patent by adding specificity regarding solvent formulations and explicitly carving out other technologies, a to better align with and capture specific commercial extraction practices Compl. ¶¶35-36

Key Claims at a Glance

• The complaint asserts infringement of at least independent claim 1 Compl. ¶46
• The essential elements of claim 1 are:
  • A safer and more reliable extraction process for extracting cannabinoids and to reduce chlorophyll and wax co-extraction from a cannabis, or hemp plant substrate, wherein the process excludes use of liquid carbon dioxide, comprising:
  • (i) pre-processing comprising lowering the temperature of a solvent to a range of -30 degrees C. to -50 degrees C.,
  • (ii) contacting at -30 degrees C. to -50 degrees C., wherein there is a contacting time between the cannabis plant substrate and the solvent to create an emulsion,
  • (iii) evaporating for reduction of the emulsion by means of atmospheric evaporation of the solvent,
  • (iv) recovering for recovery of the solvent from the emulsion,
  • (v) purging under vacuum to remove remaining solvent from the extract whereby a resultory extract is substantially free of any lipids and chlorophyll,
  • wherein optionally, (a) the solvent is 95% ethanol and 5% of a solvent that is another solvent that does not comprise ethanol, or (b) the solvent is at least one solvent-like material selected from the group consisting essentially of heptane, hexane, isopropyl alcohol, and menthanol.
    '248 Patent, col. 23:1-col. 24:24
• The complaint alleges infringement of "one or more claims" of the patent, suggesting dependent claims may be asserted later Compl. ¶47

III. The Accused Instrumentality

Product Identification

• The accused instrumentality is Defendant's process, referred to in the complaint as the "Accused Chilled Extraction Method," used for extracting cannabinoids from cannabis or hemp plant substrate Compl. ¶¶23-24

Functionality and Market Context

• The complaint alleges the Defendant uses an extraction method that involves chilling an ethanol-based solvent and plant material to temperatures in the range of -30°C to -50°C Compl. ¶29 Specifically, the complaint alleges temperatures "below -40C" are used Compl. ¶24
• The process is alleged to use an "ethanol solvent that is comprised of 95% ethanol and 5% of a solvent that does not comprise ethanol" Compl. ¶35
• The alleged infringing method includes steps of contacting the cooled solvent with the plant substrate, atmospheric evaporation of the solvent to reduce the resulting emulsion, recovery of the solvent, and purging the final extract to remove any remaining solvent (Compl. ¶30; Compl. ¶31; Compl. ¶32; Compl. ¶33; Compl. ¶34).
• The complaint asserts that this process produces high-quality cannabis concentrates (such as shatter, budder, and distillate) whose clarity and quality are evidence of the patented cold extraction method, as warmer methods would result in an inferior product requiring substantial post-processing Compl. ¶¶37-38
• No probative visual evidence provided in complaint.

IV. Analysis of Infringement Allegations

'407 Patent Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
(i) pre-processing comprising lowering the temperature of a solvent to a range of -30 degrees C. and -50 degrees C.	The Accused Chilled Extraction Method is alleged to include "lowering the temperature of the solvent to a range of -30 degrees C to -50 degrees C" Compl. ¶29	¶29	col. 8:16-18
(ii) contacting at -30 degrees C. to -50 degrees C. ... to create an emulsion	Defendant is alleged to bring "the cooled solvent into contact with the plant substrate to create an emulsion" at a temperature "between -30 degrees C to -50 degrees C" Compl. ¶30	¶30	col. 8:19-22
(iii) evaporating for reduction of the emulsion by means of atmospheric evaporation of the solvent	The accused method is alleged to include "a step of atmospheric evaporation of the solvent for reduction of the emulsion" Compl. ¶32	¶32	col. 8:23-24
(iv) recovering for recovery of the solvent from the emulsion	The accused method is alleged to include "recovering of solvent from the emulsion" Compl. ¶33	¶33	col. 8:25-26
(v) purging whereby a resultory extract is substantially free of any lipids and chlorophyll	The accused method is alleged to include "a step of purging to remove remaining solvent from the extract that is substantially free of any lipids and chlorophyll" Compl. ¶34	¶34	col. 8:27-28

• Identified Points of Contention: The complaint's allegations map very closely to the language of claim 1. A primary point of contention may be evidentiary, centering on whether Plaintiff can prove Defendant's process operates precisely as alleged. A potential technical question is whether the "atmospheric evaporation" step, which the complaint alleges is done using an "evaporator which retains and recaptures the evaporated solvent" Compl. ¶32, is the same as the "atmospheric evaporation" for emulsion reduction recited in the claim, or if it is more akin to the separate "solvent recovery" step, which the patent teaches can be done with a rotary evaporator '407 Patent, claim 11

'248 Patent Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
(i) pre-processing comprising lowering the temperature of a solvent to a range of -30 degrees C. to -50 degrees C.	The accused method allegedly includes "lowering the temperature of the solvent to a range of -30 degrees C to -50 degrees C" Compl. ¶29	¶29	col. 24:1-3
(ii) contacting at -30 degrees C. to -50 degrees C. ... to create an emulsion	Defendant is alleged to bring the cooled solvent into contact with the plant substrate at a temperature "between -30 degrees C to -50 degrees C" Compl. ¶30	¶30	col. 24:4-7
(v) purging under vacuum to remove remaining solvent from the extract whereby a resultory extract is substantially free of any lipids and chlorophyll	The accused method is alleged to include "a step of purging to remove remaining solvent from the extract that is substantially free of any lipids and chlorophyll" Compl. ¶34	¶34	col. 24:13-16
wherein optionally, (a) the solvent is 95% ethanol and 5% of a solvent that is another solvent that does not comprise ethanol, or (b) the solvent is at least one solvent-like material selected from the group consisting essentially of heptane, hexane...	The complaint alleges the accused method "utilizes an ethanol solvent that is comprised of 95% ethanol and 5% of a solvent that does not comprise ethanol" Compl. ¶35	¶35	col. 24:17-24

• Identified Points of Contention: As with the '407 Patent, a central issue will be the evidentiary proof for the alleged process parameters. A key legal question specific to the '248 Patent will be the interpretation of the "wherein optionally" clause. Defendant may argue this clause limits the claim's scope to only processes using the specified solvent types. Conversely, Plaintiff may argue the term "optionally" means the solvent type is not a required limitation for infringement, and that meeting steps (i)-(v) is sufficient. The unusual drafting of this clause in an independent claim raises a significant question for claim construction.

V. Key Claim Terms for Construction

"solvent"

• Context and Importance: The definition of "solvent" is critical, particularly for the '407 Patent. The complaint alleges the use of a 95% ethanol mixture Compl. ¶35, but the '407 Patent specification contains a statement that could be interpreted as a narrow definition. Practitioners may focus on this term because its construction could be dispositive of infringement for the '407 Patent.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The plain and ordinary meaning of "solvent" is broad. The '248 Patent, part of the same patent family, explicitly contemplates various solvents and mixtures, including 95% ethanol blends and non-ethanol solvents like heptane '248 Patent, col. 2:50-56 '248 Patent, claim 1, which may be argued as context for the term.
  • Evidence for a Narrower Interpretation: The specification of the '407 Patent states, "The term solvent as used herein should be understood to describe 100% grain ethanol" '407 Patent, col. 2:4-5 This statement provides strong intrinsic evidence for a lexicographical definition that limits the term to 100% ethanol, at least within the context of the '407 Patent.

"substantially free of any lipids and chlorophyll"

• Context and Importance: This term, found in both asserted claims, defines the required purity of the final extract. It is a term of degree, and its construction will be central to determining whether the accused process achieves the claimed result.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The patents frame the invention as a way to bypass undesired constituents and avoid post-processing steps like winterization and dewaxing Compl. ¶38 '407 Patent, col. 1:28-32 This context may support an interpretation where "substantially free" means a level of purity that makes such steps unnecessary, a qualitative rather than quantitative standard.
  • Evidence for a Narrower Interpretation: The abstract of the '407 Patent states that the methods can provide an extract "with a concentration of chlorophyll that is below 1%" '407 Patent, abstract A party could cite this as evidence that "substantially free" implies a specific numerical threshold that must be met.

VI. Other Allegations

Willful Infringement

• The complaint alleges that Defendant's infringement of both patents has been and continues to be willful Compl. ¶44 Compl. ¶50 The basis for this allegation is Defendant's knowledge of the patents "since at least the date of the filing of this complaint" Compl. ¶44 Compl. ¶50 This pleading structure aims to establish a basis for post-suit willfulness based on the notice provided by the lawsuit itself, and does not assert pre-suit knowledge.

VII. Analyst's Conclusion: Key Questions for the Case

1. Evidentiary Sufficiency: With infringement allegations that closely track the claim language, a central issue will be one of evidentiary proof: can the plaintiff obtain and present sufficient evidence from discovery to demonstrate that the defendant's commercial extraction process factually operates within the specific temperature ranges (e.g., -30°C to -50°C), uses the alleged solvent compositions, and achieves the claimed extract purity ("substantially free of...lipids and chlorophyll")?

2. Claim Construction and Scope: The case presents two critical claim construction questions. First, for the '407 Patent, the issue is one of definitional limitation: will the term "solvent" be narrowly construed as "100% grain ethanol" based on the specification's explicit definition, potentially precluding infringement by the alleged 95% ethanol process? Second, for the '248 Patent, the issue is one of claim scope: what is the legal effect of the "wherein optionally" clause? Does it merely provide non-limiting examples of solvents, or does it restrict the scope of the claim to processes that use one of the specified solvent types?

3. Technical Distinctions in Process Steps: An underlying technical question will be whether the defendant's alleged process steps are functionally equivalent to those claimed. For example, does the defendant's alleged use of an "evaporator which retains and recaptures" solvent for emulsion reduction constitute the claimed "atmospheric evaporation," or is it a distinct solvent recovery or distillation process not covered by that limitation?