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USPTO Patent Rankings Data through Dec 31, 2025
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David E. Allan — 6 Patents

ExxonMobil: 6 patents #1,830 of 10,161Top 20%
Baton Rouge, LA: #346 of 1,896 inventorsTop 20%
Louisiana: #1,125 of 10,876 inventorsTop 15%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
David E. Allan has been granted 6 US patents while listed as an inventor at ExxonMobil. The first was granted in 1985 and the most recent in March 1989. David E. Allan ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list David E. Allan in Baton Rouge, LA, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4816136 Low severity fluid coking Don E. Blaser 1989-03-28 $179,415,000
4534851 Feed injection method to prevent coking on the walls of transfer line reactors Charles H. Martinez 1985-08-13 $40,526,000
4519898 Low severity delayed coking 1985-05-28 $27,876,000
4501654 Delayed coking process with split fresh feed and top feeding 1985-02-26 $21,454,000
4501820 Method for the recovery of a tungsten-containing catalyst from coke containing nickel and vanadium Byron V. Molstedt, Raam R. Mohan 1985-02-26 $21,454,000
4492625 Delayed coking process with split fresh feed 1985-01-08 $34,744,000