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Patent applications and USPTO patent grants for Ma; Son.The latest application filed is for "suspension system for power wheelchair stander".
Patent | Date |
---|---|
Suspension system for power wheelchair stander Grant 11,426,313 - Ciolfe , et al. August 30, 2 | 2022-08-30 |
Suspension System For Power Wheelchair Stander App 20200297561 - Ciolfe; David ;   et al. | 2020-09-24 |
Raisable leg rest App 20030075967 - Ciolfe, David ;   et al. | 2003-04-24 |
Weight positioning reclining seat kit for wheelchairs Grant 6,390,554 - Eakins , et al. May 21, 2 | 2002-05-21 |
Adjustable chair Grant 6,015,189 - Broadhead , et al. January 18, 2 | 2000-01-18 |
Adjustable chair Grant 5,320,412 - Eakins , et al. June 14, 1 | 1994-06-14 |
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