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

Son Ma — 4 Patents

MCMotion Concepts: 1 patents #3 of 5Top 60%
Scarborough, CA: #119 of 629 inventorsTop 20%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Son Ma has been granted 4 US patents while listed as an inventor at Motion Concepts. The first was granted in 1994 and the most recent in August 2022. Son Ma ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Son Ma in Scarborough, ON, CA.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11426313 Suspension system for power wheelchair stander David Ciolfe, David Headrick 2022-08-30
6390554 Weight positioning reclining seat kit for wheelchairs Richard Eakins, David Harding 2002-05-21
6015189 Adjustable chair Douglas G. Broadhead, Richard Eakins, Czeslaw Cimachowski, Brian Bentley, Joe Krommenhoek +2 more 2000-01-18
5320412 Adjustable chair Richard Eakins, Czeslaw Cimachowski, Brian Bentley, Joe Krommenhoek, David Harding +1 more 1994-06-14