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

John P. Knowles — 2 Patents

Chevron: 2 patents #1,782 of 4,788Top 40%
Johnshaven, GB: #1 of 1 inventorsTop 100%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John P. Knowles has been granted 2 US patents while listed as an inventor at Chevron. The first was granted in 1985 and the most recent in January 1986. John P. Knowles ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John P. Knowles in Johnshaven, GB.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4563032 Pulling head for removably engaging a conduit end 1986-01-07 $21,855,000
4519726 Flow line riser for offshore structure Steven Wheeler, Stewart D. Mitchell 1985-05-28 $6,963,000