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

William Hackman — 2 Patents

Tehachapi, CA: #37 of 97 inventorsTop 40%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
William Hackman has been granted 2 US patents. The first was granted in 1991 and the most recent in October 2004. William Hackman ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list William Hackman in Tehachapi, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6802163 Plant-on building enhancement Marshall Lundberg 2004-10-12
4993468 Window with automatic screen Leonard A. Miller 1991-02-19