Wang; Hwa-Chi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Wang; Hwa-Chi.The latest application filed is for "liquefied chemical gas delivery system".

Company Profile

0.10.8

Wang; Hwa-Chi - Naperville IL
Wang; Hwa-Chi - West Chester PA
Wang; Hwa-Chi - Downers Grove IL

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Purification and transfilling of ammonia Grant 7,297,181 - Zhou , et al. November 20, 2	2007-11-20
Liquefied Chemical Gas Delivery System App 20070204631 - Udischas; Richard J. ; et al.	2007-09-06
Liquid Purge for a Vaporizer App 20070163273 - Udischas; Richard J. ; et al.	2007-07-19
Purification and transfilling of ammonia App 20060005704 - Zhou; Derong ; et al.	2006-01-12
Pressure vessel systems and methods for dispensing liquid chemical compositions Grant 6,899,116 - Xu , et al. May 31, 2	2005-05-31
Chamber effluent monitoring system and semiconductor processing system comprising absorption spectroscopy measurement system, and methods of use Grant 6,885,452 - McAndrew , et al. April 26, 2	2005-04-26
Purification and recovery of fluids in processing applications App 20050006310 - Agrawal, Rajat ; et al.	2005-01-13
Pressure vessel systems and methods for dispensing liquid chemical compositions App 20040194336 - Xu, Mindi ; et al.	2004-10-07
Pressure vessel systems and methods for dispensing liquid chemical compositions Grant 6,736,154 - Xu , et al. May 18, 2	2004-05-18
Chamber effluent monitoring system and semiconductor processing system comprising absorption spectroscopy measurement system, and methods of use App 20030063284 - McAndrew, James ; et al.	2003-04-03
Apparatus and method for vaporizing a liquid chemical App 20030021595 - Xu, Mindi ; et al.	2003-01-30
Pressure vessel systems and methods for dispensing liquid chemical compositions App 20020112758 - Xu, Mindi ; et al.	2002-08-22
Method and apparatus for the fast detection of surface characteristics Grant 6,392,745 - Mavliev , et al. May 21, 2	2002-05-21
System and method for controlled delivery of liquefied gases from a bulk source Grant 6,363,728 - Udischas , et al. April 2, 2	2002-04-02
Chamber effluent monitoring system and semiconductor processing system comprising absorption spectroscopy measurement system, and methods of use Grant 6,154,284 - McAndrew , et al. November 28, 2	2000-11-28
System and method for delivery of a vapor phase product to a point of use Grant 6,122,931 - Paganessi , et al. September 26, 2	2000-09-26
System and method for controlled delivery of liquified gases Grant 6,076,359 - Jurcik , et al. June 20, 2	2000-06-20
Method of separating condensible vapors from particles in highly compressed gases Grant 4,964,278 - Wen , et al. October 23, 1	1990-10-23

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