Respirator Research Ltd.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Respirator Research Ltd..The latest application filed is for "open circuit emergency breathing apparatus and pressure demand valve therefor".
- Respirator Research Ltd. - Willoughby OH
| Patent | Date |
|---|---|
| Open circuit emergency breathing apparatus and pressure demand valve therefor Grant 4,971,050 - Bartos November 20, 1 | 1990-11-20 |
| Portable emergency breathing apparatus Grant 4,800,923 - Bartos January 31, 1 | 1989-01-31 |
| Portable emergency breathing apparatus Grant 4,798,203 - Bartos January 17, 1 | 1989-01-17 |
| Emergency breathing gas container and control mechanism Grant D297,869 - Bartos September 27, 1 | 1988-09-27 |
| Portable emergency breathing apparatus Grant 4,722,333 - Bartos February 2, 1 | 1988-02-02 |
| SEC | 0000767210 | RESPIRATOR RESEARCH LTD |
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