Chang; Ifay F.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Chang; Ifay F..The latest application filed is for "methods for enabling e-commerce voice communication".

Company Profile

0.13.2

Chang; Ifay F. - Katonah NY
Chang; Ifay F. - Somers NY
Chang; Ifay F. - Katomah NY
Chang; Ifay F. - Chappaqua NY

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Word scramble games for stimulating brain and physical health Grant 8,567,787 - Chang October 29, 2	2013-10-29
Communication enabled active lock system Grant 8,138,886 - Chang March 20, 2	2012-03-20
Methods For Enabling E-commerce Voice Communication App 20110103368 - Chang; Ifay F.	2011-05-05
Methods For Enabling E-commerce Voice Communication App 20100183131 - Chang; Ifay F.	2010-07-22
Method and system for establishing a voice communication solution for business transactions and commerce applications Grant 7,643,435 - Chang January 5, 2	2010-01-05
Methods for enabling e-commerce voice communication Grant 7,325,029 - Chang January 29, 2	2008-01-29
Method and system for establishing a voice communication service for business transactions and commerce applications Grant 7,065,070 - Chang June 20, 2	2006-06-20
Touch-screen input device using the monitor as a light source operating at an intermediate frequency Grant 5,764,223 - Chang , et al. June 9, 1	1998-06-09
Cathodoluminescent garnet lamp Grant 4,792,728 - Chang , et al. December 20, 1	1988-12-20
Light activated light valve with a silicon control element Grant 4,767,192 - Chang , et al. August 30, 1	1988-08-30
Light pen input system having two-threshold light sensing Grant 4,642,459 - Caswell , et al. February 10, 1	1987-02-10
Full word coding for information processing Grant 4,500,955 - Chang February 19, 1	1985-02-19
Manganese doped zinc silicate luminescent phosphors with III-V oxide substitutions Grant 4,231,892 - Chang , et al. November 4, 1	1980-11-04

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