Leif R. Sigmond, Jr.

General

Experience25 yrs

Elite Ratings

Practice Areas

Biotech (2 cases)

Comp. Arch. and Software (26 cases)

Software, Security (27 cases)

Communications (6 cases)

Semicond., Optic (11 cases)

Law Firms

McDonnell Boehnen Hulbert & Berghoff LLP

Experience

Grade

Trend

DCT

PTAB

CAFC

Case #	Court	Caption	Filed	Represent
3:25-CV-00735	E.D. VA	Syngenta Crop Protection AG v. UPL Ltd	09/11/25	Challenger :Syngenta Crop Protection AG	.
1:25-CV-01520	E.D. VA	Syngenta Crop Protection AG v. UPL Ltd	09/11/25	Challenger :Syngenta Crop Protection AG	.
1:23-CV-16471	N.D. IL	Meac Engineering Ltd v. Cardinal Health Inc	12/04/23	Challenger :Cardinal Health Inc	.
1:23-CV-01090	W.D. TX	Igt v. Zynga Inc	09/12/23	Patent Owner :Igt BV	.
2:21-CV-01962	D. NV	Acres 40 Inc v. InterGlobe Technologies	10/25/21	Challenger :Igt BV	.
1:21-CV-11446	D. MA	General Electric Co v. Gamesa Electric Sau	09/02/21	Challenger(W) :Siemens Gamesa Renewable Energy Inc	.
6:21-CV-00331	W.D. TX	IGT v. Zynga Inc	04/06/21	Patent Owner :Igt BV	.
1:23-CV-00885	W.D. TX	Igt v. Zynga Inc	04/06/21	Patent Owner :Igt BV	.
1:21-CV-10216	D. MA	Siemens Gamesa Renewable Energy As v. General Electric Co	02/08/21	Patent Owner(W) :Siemens Gamesa Renewable Energy As	.
8:20-CV-02281	M.D. FL	Siemens Gamesa Renewable Energy As v. General Electric Co	09/29/20	Patent Owner :Siemens Gamesa Renewable Energy SA	.