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

Robert B. Calvert — 4 Patents

ExxonMobil: 3 patents #3,063 of 10,161Top 35%
CACroda Americas: 1 patents #2 of 9Top 25%
CPCroda International Plc: 1 patents #96 of 161Top 60%
Plainsboro, NJ: #499 of 1,381 inventorsTop 40%
New Jersey: #19,535 of 69,400 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Robert B. Calvert has been granted 4 US patents while listed as an inventor at ExxonMobil. The first was granted in 1985 and the most recent in June 2013. Robert B. Calvert ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert B. Calvert in Plainsboro, NJ, US.

Patents per Year

Patents granted per year, 1985 to 2013Bar chart with a peak of 1 patents in 1985.peak 11985: 1 patents19851987: 1 patents19871990: 1 patents19902013: 1 patents2013

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8470752 Automotive lubricant composition Christopher Donaghy, Andrew Oldfield 2013-06-25
4923690 Method for producing highly siliceous zeolites Ernest W. Valyocsik, Stephen S. Wong 1990-05-08 $22,310,000
4642226 Process for the preparation of zeolite Beta using dibenzyldimethylammonium ions and the product produced Clarence D. Chang, Mae K. Rubin, Ernest W. Valyocsik 1987-02-10 $14,799,000
4495166 Synthesis of ZSM-5 utilizing a mixture of quaternary ammonium ions and amines Louis D. Rollmann 1985-01-22 $8,072,000