Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Sumanth Addagarla — 3 Patents

Chevron: 3 patents #1,355 of 4,788Top 30%
Richmond, CA: #221 of 603 inventorsTop 40%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Sumanth Addagarla has been granted 3 US patents while listed as an inventor at Chevron. The first was granted in 1999 and the most recent in May 2002. Sumanth Addagarla ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Sumanth Addagarla in Richmond, CA, US.

Patents per Year

Patents granted per year, 1999 to 2002Bar chart with a peak of 1 patents in 1999.peak 11999: 1 patents19992000: 1 patents20002002: 1 patents2002

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6391833 Low sulfur lubricant composition for two-stroke engines Frank Ilmain, Jacques Cazin 2002-05-21
6040279 Lubricant composition suitable for direct fuel injected, crankcase-scavenged two-stroke cycle engines Glenn E. Callis 2000-03-21 $212,102,000
5866520 Lubricant composition suitable for direct fuel injected, crankcase-scavenged two-stroke cycle engines Glenn E. Callis 1999-02-02 $93,341,000