Hansen; Douglas Walter
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hansen; Douglas Walter.The latest application filed is for "auto calibration of an active noise control system".
- Hansen; Douglas Walter - Dublin CA
- Hansen; Douglas Walter - Caledon East CA
- Hansen; Douglas Walter - Caldedon East CA
| Patent | Date |
|---|---|
| Auto calibration of an active noise control system Grant 11,284,184 - Fellers , et al. March 22, 2 | 2022-03-22 |
| Auto Calibration Of An Active Noise Control System App 20210204054 - FELLERS; Matthew Conrad ; et al. | 2021-07-01 |
| Speaker Grant 8,036,414 - French , et al. October 11, 2 | 2011-10-11 |
| Speaker App 20080118097 - French; John B. ; et al. | 2008-05-22 |
| Audio amplifier Grant 7,362,168 - French , et al. April 22, 2 | 2008-04-22 |
| Audio amplifier App 20070080745 - French; John B. ; et al. | 2007-04-12 |
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.
| 