Ratzlaff; Larry R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ratzlaff; Larry R..The latest application filed is for "chamber-less smoke sensor".
- Ratzlaff; Larry R. - Elgin IL
| Patent | Date |
|---|---|
| Chamber-less smoke sensor Grant 10,037,665 - Zribi , et al. July 31, 2 | 2018-07-31 |
| Chamber-less Smoke Sensor App 20170178481 - Zribi; Anis ; et al. | 2017-06-22 |
| Chamber-less smoke sensor Grant 9,652,958 - Zribi , et al. May 16, 2 | 2017-05-16 |
| Reactive power supply Grant 9,547,348 - Buchholz , et al. January 17, 2 | 2017-01-17 |
| Photoelectric smoke detector with drift compensation Grant 9,396,637 - Chandler , et al. July 19, 2 | 2016-07-19 |
| Chamber-less Smoke Sensor App 20150371515 - Zribi; Anis ; et al. | 2015-12-24 |
| Systems and methods for optimizing low battery indication in alarms Grant 9,019,112 - Ratzlaff , et al. April 28, 2 | 2015-04-28 |
| Reactive Power Supply App 20140337653 - Buchholz; Matthew J. ; et al. | 2014-11-13 |
| Systems And Methods For Optimizing Low Battery Indication In Alarms App 20140015682 - Ratzlaff; Larry R. ; et al. | 2014-01-16 |
| Photoelectric Smoke Detector With Drift Compensation App 20140015680 - Chandler; Bill ; et al. | 2014-01-16 |
| Pivoting battery carrier and a life safety device incorporating the same Grant 7,948,389 - Sharpe , et al. May 24, 2 | 2011-05-24 |
| Pivoting battery carrier and a life safety device incorporating the same Grant 7,492,273 - Sharpe , et al. February 17, 2 | 2009-02-17 |
| Pivoting Battery Carrier and a Life Safety Device Incorporating the Same App 20080316044 - Sharpe; Jason M. ; et al. | 2008-12-25 |
| Pivoting battery carrier and a life safety device incorporating the same App 20040229113 - Sharpe, Jason M. ; et al. | 2004-11-18 |
| Smoke detector Grant D346,981 - Ratzlaff May 17, 1 | 1994-05-17 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 