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Glenn E. Callis — 2 Patents

Chevron: 2 patents #1,782 of 4,788Top 40%
Walnut Creek, CA: #596 of 1,300 inventorsTop 50%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Glenn E. Callis has been granted 2 US patents while listed as an inventor at Chevron. The first was granted in 1999 and the most recent in March 2000. Glenn E. Callis ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Glenn E. Callis in Walnut Creek, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6040279 Lubricant composition suitable for direct fuel injected, crankcase-scavenged two-stroke cycle engines Sumanth Addagarla 2000-03-21 $212,102,000
5866520 Lubricant composition suitable for direct fuel injected, crankcase-scavenged two-stroke cycle engines Sumanth Addagarla 1999-02-02 $93,341,000

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