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

Leonard Katzin — 7 Patents

LELenjoy Engineering: 2 patents #3 of 4Top 75%
Beverly Hills, CA: #141 of 914 inventorsTop 20%
California: #83,669 of 386,348 inventorsTop 25%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Leonard Katzin has been granted 7 US patents while listed as an inventor at Lenjoy Engineering. The first was granted in 1981 and the most recent in July 2001. Leonard Katzin ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Leonard Katzin in Beverly Hills, CA, US.

Patents per Year

Patents granted per year, 1981 to 2001Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19811985: 1 patents19851989: 1 patents19891993: 1 patents19931998: 1 patents19982000: 1 patents20002001: 1 patents2001

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