David A. Holdeman — 2 Patents at Amoco

David A. Holdeman — 2 Patents

AMAmoco: 1 patents #610 of 1,251Top 50%

UNUnknown: 1 patents #29,356 of 83,584Top 40%

Edwardsville, IL: #118 of 269 inventorsTop 45%

Illinois: #34,875 of 84,256 inventorsTop 45%

Overall (All Time): #1,709,992 of 4,157,543Top 45%

David A. Holdeman has been granted 2 US patents while listed as an inventor at Amoco. The first was granted in 1987 and the most recent in June 1989. David A. Holdeman ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David A. Holdeman in Edwardsville, IL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4836999	Method for controlling claus furnace with variable hydrocarbon feed composition	Robert L. Reed	1989-06-06	$5,472,000
4711357	Automated system and method for transporting and sorting articles	Keith A. Langenbeck	1987-12-08

David A. Holdeman — 2 Patents

Issued Patents All Time

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