Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DC

Donald D. Campbell

CCCompaq Computer: 2 patents #518 of 1,604Top 35%
San Jose, CA: #17,604 of 32,062 inventorsTop 55%
California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,223,412 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6193069 Apparatus for packaging processing system elements for mailing and shipping John L. Guenther, Brian Perry 2001-02-27
6121737 Ceiling mounted processor system John L. Guenther, Brian Perry 2000-09-19