Wheelchair cushion with adjustable/multi-stiffness fluid
US9855174B1 · kind B1 · utility
4Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2015 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | May 15, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G7/05738
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wheelchair cushion comprises a dual stiffness fluid. A cushion also comprises an ability to adjust fluid volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.