Helterbrand; Arlen
Patent Applications and Registrations
Patent applications and USPTO patent grants for Helterbrand; Arlen.The latest application filed is for "folding convertible wheelchair".
- Helterbrand; Arlen - Sheridan IN US
- Helterbrand; Arlen - Pana IL
- Helterbrand; Arlen - Louisville KY
| Patent | Date |
|---|---|
| Folding convertible wheelchair Grant 8,973,925 - Helterbrand March 10, 2 | 2015-03-10 |
| Folding Convertible Wheelchair App 20150054255 - Helterbrand; Arlen | 2015-02-26 |
| Portable convertible wheelchair Grant 8,678,402 - Helterbrand March 25, 2 | 2014-03-25 |
| Portable Convertible Wheelchair App 20140035260 - Helterbrand; Arlen | 2014-02-06 |
| Portable Convertible Wheelchair App 20140035253 - Helterbrand; Arlen | 2014-02-06 |
| Universal framing system for glazing and method of using same Grant 4,756,127 - Helterbrand , et al. July 12, 1 | 1988-07-12 |
| Adjustable wrought iron railing assembly Grant 3,942,763 - Helterbrand , et al. March 9, 1 | 1976-03-09 |
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