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USPTO Patent Rankings Data through Dec 31, 2025
Home › Amoco › William Eschenfeldt
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William Eschenfeldt — 2 Patents

AMAmoco: 1 patents #610 of 1,251Top 50%
BHBall Horticultural: 1 patents #57 of 82Top 70%
McLeansboro, IL: #224 of 612 inventorsTop 40%
Illinois: #34,875 of 84,256 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
William Eschenfeldt has been granted 2 US patents while listed as an inventor at Amoco. The first was granted in 1997 and the most recent in May 2007. William Eschenfeldt ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list William Eschenfeldt in McLeansboro, IL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7223909 4-ketocarotenoids in flower petals Randal Hauptmann, Robert Eisenreich, Zubin Khambatta 2007-05-29
5618988 Enhanced carotenoid accumulation in storage organs of genetically engineered plants Randal Hauptmann, Jami English, Friedhelm Brinkhaus 1997-04-08 $71,098,000

Frequent Collaborators

Randal Hauptmann2 shared
Zubin Khambatta1 shared
Friedhelm Brinkhaus1 shared
Jami English1 shared
Robert Eisenreich1 shared

Nearby-Ranked Inventors

Leonard Mattheis2
Yiqi SHI2
Roberto DiCecco2
Haoneng Xu2
Emily Chew2
So Young Bae2
Julian Alexander Georgi2
Yoshihiro Asahara2
Assaf Ariel2