Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David WALKER — 6 Patents

Solana Beach, CA: #146 of 500 inventorsTop 30%
California: #94,478 of 386,348 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
David WALKER has been granted 6 US patents. The first was granted in 1997 and the most recent in January 2025. David WALKER ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list David WALKER in Solana Beach, CA, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
12194359 Distance calculator devices and methods for golf practice ranges Dale Timm, Mike CASSIANO, Troy L. PARISH 2025-01-14
11691064 Distance calculator devices and methods for golf practice ranges Dale Timm, Mike CASSIANO, Troy L. PARISH 2023-07-04
11235222 Distance calculator devices and methods for golf practice ranges Dale Timm, Mike CASSIANO, Troy L. PARISH 2022-02-01
10814201 Distance calculator devices and methods for golf practice ranges Dale Timm, Mike CASSIANO, Troy L. PARISH 2020-10-27
6186528 Wheelchair and trailer system Janice Walker 2001-02-13
D377669 Table top golf game 1997-01-28