Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Leonard Katzin — 7 Patents

LELenjoy Engineering: 2 patents #3 of 4Top 75%
Beverly Hills, CA: #140 of 914 inventorsTop 20%
California: #82,707 of 386,348 inventorsTop 25%
Overall (All Time): #761,471 of 4,157,543Top 20%
7 Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6261253 Deformable orthosis 2001-07-17
6024714 Deformable orthosis 2000-02-15
5733249 Deformable orthosis by Josephine S. Katzin, legal representative 1998-03-31
5178025 Tiltable lift seat devices John E. Bennett 1993-01-12
4875469 Continuous passive motion devices and methods Arthur H. Brook, Peter J. Carian, Edmund E. Landsinger, James Daniel Moore, Jr., Leah Rotter +1 more 1989-10-24
4556325 Compartmentalized dynamic mixing apparatus 1985-12-03
4273401 Zero insertion force electrical connector 1981-06-16