DL

David W. Lum

Apple: 23 patents #1,389 of 18,612Top 8%
PF Palm Firm: 2 patents #146 of 429Top 35%
HP HP: 1 patents #8,774 of 16,619Top 55%
PI Palmone, Incorporated: 1 patents #23 of 67Top 35%
📍 Cupertino, CA: #563 of 6,989 inventorsTop 9%
🗺 California: #18,844 of 386,348 inventorsTop 5%
Overall (All Time): #134,880 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
7724270 Apparatus and methods to achieve a variable color pixel border on a negative mode screen with a passive matrix drive Yichang Chan 2010-05-25
7425970 Controllable pixel border for a negative mode passive matrix display device Shawn R. Gettemy, Sherridythe Fraser 2008-09-16
6831662 Apparatus and methods to achieve a variable color pixel border on a negative mode screen with a passive matrix drive Yichang Chan 2004-12-14