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

Charles Abma — 6 Patents

WIWitco: 4 patents #14 of 201Top 7%
ACArgus Chemical: 2 patents #23 of 56Top 45%
Davis, CA: #258 of 1,472 inventorsTop 20%
California: #94,478 of 386,348 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Charles Abma has been granted 6 US patents while listed as an inventor at Witco. The first was granted in 1980 and the most recent in February 1998. Charles Abma ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Charles Abma in Davis, CA, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5719304 Organic peroxide stabilization with phosphomolybdic acid Peter Frenkel 1998-02-17 $11,994,000
5714626 Organic peroxide stabilization with .beta.-dicarbonyl compounds Peter Frenkel, Lawrence A. Bock, Anthony Andrews, Michael Wells 1998-02-03 $12,169,000
5654463 Organic peroxide stabilization with .alpha.-hydroxyalkyl peroxides Peter Frenkel 1997-08-05 $6,649,000
5654464 Organic peroxide stabilization with cyclic .alpha.-diketone compounds Peter Frenkel, Lawrence A. Bock 1997-08-05 $6,649,000
4271279 Cyclic perketals and their use for cross-linking high density polyethylene Ronald L. Pastorino, Roger N. Lewis 1981-06-02 $1,540,000
4197244 Cyclic perketals and their use for cross-linking high density polyethylene Ronald L. Pastorino, Roger N. Lewis 1980-04-08 $1,405,000