HW

Hwa-Chi Wang

AL American Air Liquide: 22 patents #6 of 326Top 2%
AA Air Liquide America: 2 patents #17 of 97Top 20%
AA Air Liquide America: 1 patents #12 of 66Top 20%
📍 Downers Grove, IL: #23 of 824 inventorsTop 3%
🗺 Illinois: #3,068 of 84,256 inventorsTop 4%
Overall (All Time): #186,396 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
7297181 Purification and transfilling of ammonia Derong Zhou, John Borzio, Mindi Xu, Tran Vuong 2007-11-20
6899116 Pressure vessel systems and methods for dispensing liquid chemical compositions Mindi Xu, Hervé Dulphy 2005-05-31
6885452 Chamber effluent monitoring system and semiconductor processing system comprising absorption spectroscopy measurement system, and methods of use James McAndrew, Benjamin Jurcik 2005-04-26
6736154 Pressure vessel systems and methods for dispensing liquid chemical compositions Mindi Xu, Hervé Dulphy 2004-05-18
6493086 Chamber effluent monitoring system and semiconductor processing system comprising absorption spectroscopy measurement system, and methods of use James McAndrew, Benjamin Jurcik 2002-12-10
6392745 Method and apparatus for the fast detection of surface characteristics Rashid Mavliev 2002-05-21
6363728 System and method for controlled delivery of liquefied gases from a bulk source Richard J. Udischas, Benjamin Jurcik, Robert G. Irwin 2002-04-02
6214173 On-site manufacture of ultra-high-purity nitric acid Mindi Xu, Wallace I. Yuan, Tracey Jacksier, Joe G. Hoffman, R. Scot Clark 2001-04-10
6199384 System and method for controlled delivery of liquefied gases including control aspects Richard J. Udischas, Robert G. Irwin 2001-03-13
6154284 Chamber effluent monitoring system and semiconductor processing system comprising absorption spectroscopy measurement system, and methods of use James McAndrew, Benjamin Jurcik 2000-11-28
6122931 System and method for delivery of a vapor phase product to a point of use Joseph E. Paganessi, Benjamin Jurcik, Richard J. Udischas, Kazuo Yokogi, Shinji Tomita 2000-09-26
6076359 System and method for controlled delivery of liquified gases Benjamin Jurcik, Richard J. Udischas 2000-06-20
6032483 System and method for delivery of a vapor phase product to a point of use Joseph E. Paganessi, Benjamin Jurcik, Richard J. Udischas 2000-03-07
5992216 Method to analyze particle contaminants in compressed gases Richard J. Udischas 1999-11-30
5963336 Chamber effluent monitoring system and semiconductor processing system comprising absorption spectroscopy measurement system, and methods of use James McAndrew, Benjamin Jurcik 1999-10-05
5814741 Metal sampling method and system for non-hydrolyzable gases Richard J. Udischas 1998-09-29
5761911 System and method for controlled delivery of liquified gases Benjamin Jurcik, Richard J. Udischas 1998-06-09
5665902 Method to analyze particle contaminants in compressed gases Richard J. Udischas 1997-09-09
5618996 Metal sampling method and system for non-hydrolyzable gases Richard J. Udischas 1997-04-08
5398712 Purgeable connection for gas cylinders Richard J. Udischas, Benjamin Jurcik 1995-03-21
5209102 Method of introducing and controlling compressed gases for impurity analysis Richard J. Udischas 1993-05-11
4964278 Method of separating condensible vapors from particles in highly compressed gases Horng-Yuan Wen, Stephen Chesters 1990-10-23
4962673 Pressure reduction device for particle sampling from compressed gases Donnel Montgomery, Horng-Yuan Wen, Gerhard Kasper 1990-10-16