loadpatents
Patent applications and USPTO patent grants for Olszewski; Walter J..The latest application filed is for "dual column high pressure nitrogen process".
Patent | Date |
---|---|
Dual column high pressure nitrogen process Grant 4,439,220 - Olszewski , et al. March 27, 1 | 1984-03-27 |
Process to recover argon from oxygen-only air separation plant Grant 4,433,990 - Olszewski February 28, 1 | 1984-02-28 |
Cryogenic system for producing low-purity oxygen Grant 4,254,629 - Olszewski March 10, 1 | 1981-03-10 |
Cryogenic system for producing low-purity oxygen Grant 4,224,045 - Olszewski , et al. September 23, 1 | 1980-09-23 |
Gas Liquefaction Process And Apparatus Grant 3,677,019 - Olszewski July 18, 1 | 1972-07-18 |
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.