Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643354 | High temperature oxygen production for ironmaking processes | Rakesh Agrawal, Arthur Ramsden Smith, Robert M. Thorogood, Thomas Ward | 1997-07-01 |
| RE34595 | Process for removing oxygen and nitrogen from crude argon | Philip J. Cook | 1994-05-03 |
| 5292804 | Separation of azeotropes in poly(vinyl alcohol) process | — | 1994-03-08 |
| 5210223 | Elevated pressure phthalic anhydride process | Philip J. Cook, Harold H. Gunardson, Melinda B. Ulrich | 1993-05-11 |
| 5174866 | Oxygen recovery from turbine exhaust using solid electrolyte membrane | William P. Hegarty, William A. Steyert, by Lila O. Steyer, executrix | 1992-12-29 |
| 5118395 | Oxygen recovery from turbine exhaust using solid electrolyte membrane | William P. Hegarty, William A. Steyert | 1992-06-02 |
| 5057133 | Thermally efficient melting and fuel reforming for glass making | Corning F. Painter, Steven P. Pastore, Gary Stuart Roth, David Charles Winchester | 1991-10-15 |
| 5035726 | Process for removing oxygen from crude argon | Philip J. Cook | 1991-07-30 |
| 5035727 | Oxygen extraction from externally fired gas turbines | — | 1991-07-30 |
| 5030768 | Process for preparing alkyl tert-alkyl ethers | Shivaji Sircar | 1991-07-09 |
| 5006141 | Thermally efficient melting for glass making | Corning F. Painter, Steven P. Pastore, Gary Stuart Roth, David Charles Winchester | 1991-04-09 |
| 4935221 | Water condenser/separator systems for Claus processes | James C. Bronfenbrenner, M. Moniz, Pradip Rao | 1990-06-19 |
| 4774365 | Pervaporation process for separating alcohols from ethers | Robert Michael Eng, Jerome L. Glazer, Charles Glen Wensley | 1988-09-27 |
| 4731185 | Biological wastewater treating system | Marshall L. Spector | 1988-03-15 |
| 4684514 | High pressure process for sulfur recovery from a hydrogen sulfide containing gas stream | — | 1987-08-04 |
| 4632818 | Production of sulfur from an oxygen enriched claus system | W. Patrick Hegarty, Dipak J. Sampat | 1986-12-30 |
| 4589896 | Process for separating CO.sub.2 and H.sub.2 S from hydrocarbons | Stephen P. Goff, James VanOmmeren | 1986-05-20 |
| 4556546 | Bis tertiary amino alkyl derivatives as solvents for acid gas removal from gas streams | William F. Burgoyne, Jr., Dale D. Dixon, Thomas J. Edwards | 1985-12-03 |
| 4529577 | Oxygen/nitrogen production with molten alkali salts | Michael T. Heffelfinger | 1985-07-16 |
| 4524050 | Catalytic hydrolysis of carbonyl sulfide | Thomas J. Edwards, William R. Ernst | 1985-06-18 |
| 4482529 | Catalytic hydrolysis of COS in acid gas removal solvents | James Edwards, William R. Ernst | 1984-11-13 |
| 4409064 | Process for concentrating sulfuric acid in an evaporator | Suresh M. Vora, William Joseph Mazzafro, Pierre L. T. Brian | 1983-10-11 |
| 4271026 | Control of activated sludge wastewater treating process for enhanced phosphorous removal | Eugene J. Greskovich, Marshall L. Spector | 1981-06-02 |