Campbell; Ronald L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Campbell; Ronald L..The latest application filed is for "thermostatic expansion valve with check valve".
- Campbell; Ronald L. - St. Charles MO
- Campbell; Ronald L. - Thornton CO
- Campbell; Ronald L. - Tustin CA
| Patent | Date |
|---|---|
| Thermostatic expansion valve with check valve Grant 7,441,563 - Huiqing , et al. October 28, 2 | 2008-10-28 |
| Thermostatic expansion valve with check valve Grant 7,434,597 - Huiging , et al. October 14, 2 | 2008-10-14 |
| Thermostatic expansion valve with check valve App 20070193629 - Huiging; Li ; et al. | 2007-08-23 |
| Thermostatic expansion valve with check valve App 20070193630 - Huiqing; Li ; et al. | 2007-08-23 |
| Single tape cartridge access port Grant 5,278,708 - Apple , et al. January 11, 1 | 1994-01-11 |
| Single tape cartridge access port Grant 5,258,882 - Apple , et al. November 2, 1 | 1993-11-02 |
| Tape cartridge magazine Grant 5,247,406 - Apple , et al. September 21, 1 | 1993-09-21 |
| Hermaphroditic interconnection of circuit boards Grant 5,199,881 - Oshita , et al. April 6, 1 | 1993-04-06 |
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.
| 