EXHIBIT 12 STOCK PURCHASE AGREEMENT THIS STOCK PURCHASE AGREEMENT (the "Agreement") is made and entered into this 31st day of December, 2001, by and between (i) Wi-LAN, INC., a Canadian corporation with a principal office address located at 2891...Stock Purchase Agreement • January 7th, 2002 • Wi Lan Inc • Telephone & telegraph apparatus
ARTICLE 1 INTERPRETATIONShare Purchase Agreement • January 18th, 2000 • Wi Lan Inc • Communications equipment, nec • Alberta
PLEDGE AGREEMENT OF DIGITAL TRANSMISSION SYSTEMS, INC. 401(K) AND EMPLOYEE STOCK OWNERSHIP PLAN AND TRUSTPledge Agreement • January 7th, 2002 • Wi Lan Inc • Telephone & telegraph apparatus • Delaware
REGISTRATION RIGHTS AGREEMENTRegistration Rights Agreement • January 18th, 2000 • Wi Lan Inc • Communications equipment, nec • Delaware
FORM OFStock Purchase Warrant • January 18th, 2000 • Wi Lan Inc • Communications equipment, nec • Tennessee
ARTICLE 1 INTERPRETATIONPurchase Agreement • January 18th, 2000 • Wi Lan Inc • Communications equipment, nec • Alberta
CONVERTIBLE DEBENTURE PURCHASE AGREEMENT made the 29th day of December, 1999. BETWEEN: WI-LAN INC., a body corporate, incorporated pursuant to the laws of the Province of Alberta (hereinafter referred to as "Wi-LAN")Convertible Debenture Purchase Agreement • January 18th, 2000 • Wi Lan Inc • Communications equipment, nec • Alberta
EXHIBIT 11 PURCHASE AND ASSIGNMENT AGREEMENT June 7, 2000 Lance Weller Margaret Weller 3400 River Green Ct. Duluth, Georgia 30096 Dear Sirs: RE: DIGITAL TRANSMISSION SYSTEMS, INC. ---------------------------------- This letter sets forth the agreement...Purchase and Assignment Agreement • November 14th, 2000 • Wi Lan Inc • Communications equipment, nec • Alberta
RECITALS:Option Agreement • January 18th, 2000 • Wi Lan Inc • Communications equipment, nec • Tennessee
