Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D634811 | Sprinkler apparatus | — | 2011-03-22 |
| 5558771 | Composite articles separating mercury from fluids | Donald F. Hagen, Wanda Bahmet, Louis C. Haddad | 1996-09-24 |
| 5492627 | Method for separating mercury from fluids using composite articles | Donald F. Hagen, Wanda Bahmet, Louis C. Haddad | 1996-02-20 |
| 5470532 | Composite reactive articles for the determination of cyanide | Donald F. Hagen, Louis C. Haddad, Craig G. Markell | 1995-11-28 |
| 5340746 | Composite reactive articles for the determination of cyanide | Donald F. Hagen, Louis C. Haddad, Craig G. Markell | 1994-08-23 |
| 5310294 | Wire-puller apparatus | — | 1994-05-10 |
| 5084977 | Saw guide apparatus | — | 1992-02-04 |