Walker David R
USPTO Trademark & Patent Filings
Trademark applications and grants for Walker David R. Walker David R has 2 trademark applications. The latest application filed is for "ENVIROSOL"
- Company Aliases
- Walker David R
- r david walker
- Walker; David R. - Clearwater FL
- Walker; David R. - New Port Richey FL
- WALKER; David R. - Ottawa CA
- Walker; David R - New Port Richey FL
Trademarks Patents
| Patent Application | Date |
|---|---|
| System And Process For Producing Biogas From An Ethanol Slurry Mix 20200148988 - 16/682457 Walker; David R. | 2020-05-14 |
| Non-invasive Method for Displaying and Monitoring Practical Data in Controllers 20190025791 - 16/139830 Walker; David R. ; et al. | 2019-01-24 |
| FLAT-TOP TUNABLE FILTER 20170168241 - 15/152270 FONDEUR; Barthelemy ; et al. | 2017-06-15 |
| FLAT-TOP TUNABLE FILTER 20160062208 - 14/939123 FONDEUR; Barthelemy ; et al. | 2016-03-03 |
| FLAT-TOP TUNABLE FILTER 20140293393 - 13/852826 FONDEUR; Barthelemy ; et al. | 2014-10-02 |
| System and process for producing biogas from an ethanol slurry mix 11,046,925 - 16/682,457 Walker June 29, 2 | 2021-06-29 |
| Non-invasive method for displaying and monitoring practical data in controllers 10,698,379 - 16/139,830 Walker , et al. | 2020-06-30 |
| Non-invasive method for displaying and monitoring practical data in controllers 10,698,379 - 16/139,830 Walker , et al. | 2020-06-30 |
| System for displaying and monitoring practical data in controllers 10,082,782 - 11/848,074 Walker , et al. September 25, 2 | 2018-09-25 |
| System for displaying and monitoring practical data in controllers 10,082,782 - 11/848,074 Walker , et al. September 25, 2 | 2018-09-25 |
Mark Image Registration | Serial | Trademark Application Date |
|---|---|
"ENVIROSOL" 85731870 |
ENVIROSOL 2012-09-18 |
"FLUIDFIRST" 85665066 |
FLUIDFIRST 2012-06-29 |
| SEC | 0001209430 | WALKER DAVID R |
| SEC | 0001280737 | WALKER DAVID R |
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.
| 