Chang; Keh-Wen
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Keh-Wen.The latest application filed is for "treatment to interface between metal film and barc or photoresist".
- Chang; Keh-Wen - Miaoli County TW
- Chang; Keh-Wen - Zaociao Township Miaoli County TW
- Chang; Keh-Wen - Zaociao Township, Maioli County N/A TW
| Patent | Date |
|---|---|
| Treatment to interface between metal film and BARC or photoresist Grant 11,081,365 - Chang , et al. August 3, 2 | 2021-08-03 |
| Treatment To Interface Between Metal Film And Barc Or Photoresist App 20200020546 - CHANG; Chung-Hao ; et al. | 2020-01-16 |
| Method and system for feed-forward advanced process control Grant 8,683,395 - Yu , et al. March 25, 2 | 2014-03-25 |
| Method And System For Feed-forward Advanced Process Control App 20130239073 - Yu; Chih-Jen ; et al. | 2013-09-12 |
| Method and system for feed-forward advanced process control Grant 8,429,569 - Yu , et al. April 23, 2 | 2013-04-23 |
| Method And System For Feed-forward Advanced Process Control App 20120264063 - Yu; Chih-Jen ; et al. | 2012-10-18 |
| Method and apparatus for lens contamination control Grant 7,564,556 - Chang , et al. July 21, 2 | 2009-07-21 |
| Method And Apparatus For Lens Contamination Control App 20080241714 - Chang; Keh-Wen ; et al. | 2008-10-02 |
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.
| 