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

Charles E. Bryan — 1 Patent

PLPrutec Limited: 1 patents #6 of 18Top 35%
Cambridge, GB: #2,816 of 4,587 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Charles E. Bryan has been granted 1 US patent while listed as an inventor at Prutec Limited. All of these patents were granted in 1987. Charles E. Bryan ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Charles E. Bryan in Cambridge, GB.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4664478 Method of manufacturing a light valve William C. Nixon 1987-05-12