Chang; An-Chao
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; An-Chao.The latest application filed is for "cam wheel assembly for refrigerant recovery machine".
- Chang; An-Chao - Lungshou Vill. N/A TW
- Chang; An-Chao - Kueishan Hsiang TW
- CHANG; An Chao - Guishan Township TW
- CHANG; An-Chao - Lungshou Village TW
| Patent | Date |
|---|---|
| Cam wheel assembly for refrigerant recovery machine Grant 8,616,083 - Chang December 31, 2 | 2013-12-31 |
| Refrigerant recovery machine with improved cam wheel assembly Grant 8,418,493 - Chang April 16, 2 | 2013-04-16 |
| Cam Wheel Assembly For Refrigerant Recovery Machine App 20130061713 - CHANG; An-Chao | 2013-03-14 |
| Cam-type Pump Structure For A Refrigerant Recycling Machine App 20110280754 - CHANG; An Chao | 2011-11-17 |
| Electronic Instrument For Refrigerant Recovery Machine App 20110132018 - CHANG; An-Chao | 2011-06-09 |
| Leakage Detection Device App 20110083492 - CHANG; An-Chao | 2011-04-14 |
| Refrigerant Recovery Machine With Improved Cam Wheel Assembly App 20110079036 - Chang; An-Chao | 2011-04-07 |
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.
| 