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

John D. Marks — 6 Patents

HEHercules: 4 patents #111 of 725Top 20%
WEWestinghouse Electric: 1 patents #2,483 of 5,139Top 50%
Salt Lake City, UT: #798 of 4,590 inventorsTop 20%
Utah: #3,432 of 19,430 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
John D. Marks has been granted 6 US patents while listed as an inventor at Hercules. The first was granted in 1986 and the most recent in September 2021. John D. Marks ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list John D. Marks in Salt Lake City, UT, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D929844 Door handle Anthony J. Danna 2021-09-07
H1088 Process for installing liner in pressure vessel 1992-08-04
5117757 Rocket motor insulation and like made with thin tacky ribbon 1992-06-02 $5,340,000
5007343 Rocket motor insulation and like made with thin tacky ribbon 1991-04-16 $3,778,000
4970700 Sonar apparatus George A. Gilmour 1990-11-13 $3,671,000
4596619 Process for lining composite vessels 1986-06-24 $13,624,000