Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6547858 | Hydrogen-permeable metal membrane and hydrogen purification assemblies containing the same | David J. Edlund, William A. Pledger | 2003-04-15 |
| 6458189 | Hydrogen-selective metal membrane modules and method of forming the same | David J. Edlund, William A. Pledger | 2002-10-01 |
| 6319306 | Hydrogen-selective metal membrane modules and method of forming the same | David J. Edlund, William A. Pledger | 2001-11-20 |
| 5050530 | Liquid applicator | Roy Studebaker | 1991-09-24 |