Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JW

James T. Walker — 10 Patents

AMAmfit: 4 patents #3 of 13Top 25%
CRCromemco: 2 patents #2 of 8Top 25%
Stanford University: 1 patents #2,423 of 5,197Top 50%
Palo Alto, CA: #2,304 of 9,675 inventorsTop 25%
California: #61,378 of 386,348 inventorsTop 20%
Overall (All Time): #481,000 of 4,157,543Top 15%
10 Patents All Time
James T. Walker has been granted 10 US patents while listed as an inventor at Amfit. The first was granted in 1982 and the most recent in February 2013. James T. Walker ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list James T. Walker in Palo Alto, CA, US.

Patents per Year

Patents granted per year, 1982 to 2013Bar chart with a peak of 2 patents in 1982.peak 21982: 2 patents19821986: 1 patents19861990: 1 patents19902001: 1 patents20012003: 1 patents20032005: 2 patents20052006: 1 patents20062013: 1 patents2013

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8378689 Electrostatic sensor device and matrix Christopher I. Walker, Tony Tadin, Arjen Sundman 2013-02-19
7019529 Electrostatic sensor device and matrix Christopher I. Walker 2006-03-28
6920188 Method and apparatus for processing a multiple-component wide dynamic range signal Kamran K. Abadi, Robert G. Lorenz 2005-07-19
6864687 Electrostatic sensor device and matrix Christopher I. Walker 2005-03-08
6552591 Method and apparatus for processing a wide dynamic range signal Kamran K. Abadi, Robert G. Lorenz 2003-04-22
6205230 Optical contour digitizer Arjen Sundman 2001-03-20
4954970 Video overlay image processing apparatus Marvin L. Kausch 1990-09-04
4593381 Microplex chip for use with a microstrip detector Stephen S. Shapiro, Bernard H. Hyams, Sherwood Parker 1986-06-03
4364037 Transition data image processor 1982-12-14 $590,000
4317114 Composite display device for combining image data and method 1982-02-23 $662,000