Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9919290 | Production of biochar absorbent from anaerobic digestate | Donald W. Kirk, Andrew J. White | 2018-03-20 |
| 9381493 | Production of biochar absorbent from anaerobic digestate | Donald W. Kirk, Andrew J. White | 2016-07-05 |
| 6527921 | Electrochemical cell stacks | Donald W. Kirk, Steven J. Thorpe | 2003-03-04 |
| 6527923 | Bifurcated electrode of use in electrolytic cells | Donald W. Kirk | 2003-03-04 |
| 5612008 | Process for treating solid waste containing volatilizable inorganic contaminants | Donald W. Kirk | 1997-03-18 |
| 4786375 | Manufacture of self supporting members of copper containing phosphorus | Donald W. Kirk | 1988-11-22 |