Issued Patents All Time
Showing 101–122 of 122 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6383670 | System and method for controlling the operation of a fuel processing system | Thomas G. Herron, William A. Pledger | 2002-05-07 |
| 6375906 | Steam reforming method and apparatus incorporating a hydrocarbon feedstock | Thomas G. Herron | 2002-04-23 |
| 6376113 | Integrated fuel cell system | William A. Pledger | 2002-04-23 |
| 6319306 | Hydrogen-selective metal membrane modules and method of forming the same | William A. Pledger, Todd Studebaker | 2001-11-20 |
| 6221117 | Hydrogen producing fuel processing system | William A. Pledger | 2001-04-24 |
| 6152995 | Hydrogen-permeable metal membrane and method for producing the same | — | 2000-11-28 |
| 6136222 | Liquid absorbent solutions for separating nitrogen from natural gas | Dwayne T. Friesen, Walter C. Babcock, David Keith Lyon, Warren K. Miller | 2000-10-24 |
| 6077457 | Liquid absorbent solutions for separating nitrogen from natural gas | Dwayne T. Friesen, Walter C. Babcock, David Keith Lyon, Warren K. Miller | 2000-06-20 |
| 5997594 | Steam reformer with internal hydrogen purification | William A. Pledger | 1999-12-07 |
| 5861137 | Steam reformer with internal hydrogen purification | — | 1999-01-19 |
| 5645626 | Composite hydrogen separation element and module | David D. Newbold, Chester B. Frost | 1997-07-08 |
| 5516745 | Nitrogen sorption | Dwayne T. Friesen, Walter C. Babcock, Warren K. Miller | 1996-05-14 |
| 5498278 | Composite hydrogen separation element and module | — | 1996-03-12 |
| 5393325 | Composite hydrogen separation metal membrane | — | 1995-02-28 |
| 5266283 | Sterically hindered, regenerable Schiff base complexes, solutions thereof and process using the same | Dwayne T. Friesen, Warren K. Miller, Bruce Johnson | 1993-11-30 |
| 5259870 | Hydrogen-permeable composite metal membrane | — | 1993-11-09 |
| 5225174 | Nitrogen sorption | Dwayne T. Friesen, Walter C. Babcock, Warren K. Miller | 1993-07-06 |
| 5217506 | Hydrogen-permeable composite metal membrane and uses thereof | Dwayne T. Friesen | 1993-06-08 |
| 5139541 | Hydrogen-permeable composite metal membrane | — | 1992-08-18 |
| 5120505 | Chemical sensors | James Russell Lowell, Dwayne T. Friesen, George Rayfield | 1992-06-09 |
| 5116796 | Organic solvent soluble oxide supported hydrogenation catalyst precursors | Richard G. Finke, Robert J. Saxton | 1992-05-26 |
| 5028394 | Chemical sensors | James Russell Lowell, Dwayne T. Friesen, George Rayfield | 1991-07-02 |