Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DA

David E. Allan

ExxonMobil: 6 patents #1,824 of 10,161Top 20%
Baton Rouge, LA: #342 of 1,896 inventorsTop 20%
Louisiana: #1,112 of 10,876 inventorsTop 15%
Overall (All Time): #894,413 of 4,157,543Top 25%
6 Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4816136 Low severity fluid coking Don E. Blaser 1989-03-28
4534851 Feed injection method to prevent coking on the walls of transfer line reactors Charles H. Martinez 1985-08-13
4519898 Low severity delayed coking 1985-05-28
4501654 Delayed coking process with split fresh feed and top feeding 1985-02-26
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
4492625 Delayed coking process with split fresh feed 1985-01-08