Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Darrell R. Pitzer — 1 Patent

ExxonMobil: 1 patents #5,674 of 10,161Top 60%
Denham Springs, LA: #33 of 83 inventorsTop 40%
Louisiana: #5,078 of 10,876 inventorsTop 50%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Darrell R. Pitzer has been granted 1 US patent while listed as an inventor at ExxonMobil. All of these patents were granted in 2001. Darrell R. Pitzer ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Darrell R. Pitzer in Denham Springs, LA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6301546 Process for detecting and monitoring changes in properties of fluidized bed solids by pressure difference fluctuation measurement Herbert Weinstein, Robert H. Shabaker, Mark L. Tiller, James H. Taylor 2001-10-09 $164,267,000