Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DL

David List — 1 Patent

TGTioxide Group: 1 patents #2 of 14Top 15%
Derby, GB: #498 of 964 inventorsTop 55%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
David List has been granted 1 US patent while listed as an inventor at Tioxide Group. All of these patents were granted in 1984. David List ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list David List in Derby, GB.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4446031 Sewage treatment composition its manufacture and use 1984-05-01