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

David B. Finkelstein

Merck: 2 patents #3,919 of 9,382Top 45%
University Of Texas System: 1 patents #2,951 of 6,559Top 45%
Dallas, TX: #2,336 of 7,543 inventorsTop 35%
Texas: #40,946 of 125,132 inventorsTop 35%
Overall (All Time): #1,658,484 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5229274 Gene encoding one step cephalosporin C amidase and expression thereof in recombinant bacillus Mark Crawford, John A. Rambosek 1993-07-20
5104800 One-step cephalosporin C amidase enzyme Mark Crawford, John A. Rambosek 1992-04-14
4797359 Heat shock regulated production of selected and fused proteins in yeast 1989-01-10