IC

Ifay F. Chang

IBM: 8 patents #13,150 of 70,183Top 20%
UN Unknown: 3 patents #7,366 of 83,584Top 9%
📍 Chappaqua, NY: #79 of 336 inventorsTop 25%
🗺 New York: #11,369 of 115,490 inventorsTop 10%
Overall (All Time): #385,498 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
8567787 Word scramble games for stimulating brain and physical health 2013-10-29
8138886 Communication enabled active lock system 2012-03-20
7643435 Method and system for establishing a voice communication solution for business transactions and commerce applications 2010-01-05
7325029 Methods for enabling e-commerce voice communication 2008-01-29
7065070 Method and system for establishing a voice communication service for business transactions and commerce applications 2006-06-20
5764223 Touch-screen input device using the monitor as a light source operating at an intermediate frequency Chengjun Julian Chen 1998-06-09
4792728 Cathodoluminescent garnet lamp Ronald I. Feigenblatt, Webster E. Howard, Eugene I. Gordon 1988-12-20
4767192 Light activated light valve with a silicon control element Eugene I. Gordon 1988-08-30
4642459 Light pen input system having two-threshold light sensing Nathan S. Caswell 1987-02-10
4500955 Full word coding for information processing 1985-02-19
4491762 Flat storage CRT and projection display 1985-01-01
4440831 Zinc silicate phosphor particles and method for making them James M. Brownlow 1984-04-03
4231892 Manganese doped zinc silicate luminescent phosphors with III-V oxide substitutions Merrill W. Shafer 1980-11-04