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

Dwayne E. Tharp — 3 Patents

Caterpillar: 3 patents #2,186 of 8,398Top 30%
Peoria, IL: #584 of 1,769 inventorsTop 35%
Illinois: #26,899 of 84,256 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Dwayne E. Tharp has been granted 3 US patents while listed as an inventor at Caterpillar. The first was granted in 1996 and the most recent in December 2000. Dwayne E. Tharp ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Dwayne E. Tharp in Peoria, IL, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6156193 Centrifugal oil filter with particle retention David R. Meinhold 2000-12-05 $23,150,000
5752308 Method of forming a hard magnetic valve actuator Dale C. Maley 1998-05-19 $18,804,000
5488340 Hard magnetic valve actuator adapted for a fuel injector Dale C. Maley 1996-01-30 $18,319,000