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

David J. Hardman

HEHercules: 4 patents #100 of 715Top 15%
SPScapa Group Plc: 1 patents #11 of 51Top 25%
Overall (All Time): #754,611 of 4,157,543Top 20%
7 Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
7303923 Biochemical and immunochemical assay device James Howard Slater, Adam G. Reid, William Lang, James Richard Jackson 2007-12-04
6573108 Biochemical and immunochemical assay device James Howard Slater, Adam G. Reid, William Lang, James Richard Jackson 2003-06-03
5972691 Dehalogenation of polyamine, neutral curing wet strength resins Robert Bates, Harvey J. Branton, Gary K. Robinson 1999-10-26
5871616 Dehalogenation of organohalogen-containing compounds Alan Bull, Brian M. Stubbs, Paul J. Sallis 1999-02-16
5857561 Tobacco conveyor belt Ian Christison Sayers 1999-01-12
5843763 Dehalogenation of organohalogen-containing compounds Alan Bull, Brian M. Stubbs, Paul J. Sallis 1998-12-01
5470742 Dehalogenation of organohalogen-containing compounds Alan Bull, Brian M. Stubbs, Paul J. Sallis 1995-11-28