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USPTO Patent Rankings Data through Dec 31, 2025
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Robert P. Cahn — 9 Patents

ExxonMobil: 6 patents #1,830 of 10,161Top 20%
KSKobe Steel: 1 patents #937 of 1,773Top 55%
Millburn, NJ: #22 of 131 inventorsTop 20%
New Jersey: #9,903 of 69,400 inventorsTop 15%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Robert P. Cahn has been granted 9 US patents while listed as an inventor at ExxonMobil. The first was granted in 1981 and the most recent in May 1991. Robert P. Cahn ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Robert P. Cahn in Millburn, NJ, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5019658 Separation of pure optical stereoisomers by pressure crystallization 1991-05-28
4956161 Process for removing SO from a gaseous mixture (OP-3409) Boyd E. Hurst 1990-09-11 $41,134,000
4853193 Process for removing NO.sub.x and SO.sub.x from a gaseous mixture Boyd E. Hurst 1989-08-01 $23,668,000
4839056 Recovery and concentration of aqueous acids and bases 1989-06-13
4662433 Individual comfort control device Norman N. Li 1987-05-05
4546552 Fluid induced transverse flow magnetically stabilized fluidized bed Jeffrey H. Siegell 1985-10-15 $23,813,000
4360448 Water in oil emulsions useful in liquid membrane Norman N. Li, Adam L. Shrier 1982-11-23 $13,049,000
4346063 Desulfurization of hot gas with cerium oxide John M. Longo 1982-08-24 $16,188,000
4292181 Use of liquid membrane systems for selective ion transfer Norman N. Li, Adam L. Shrier 1981-09-29 $10,698,000