Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8109287 | Controlled release of additives in fluid systems | Harold R. Martin, Dennis Kelly, Joseph C. Drozd, Doug Hudgens, Barry M. Verdegan | 2012-02-07 |
| 7591279 | Controlled release of additives in fluid systems | Harold R. Martin, Dennis Kelly, Joseph C. Drozd, Doug Hudgens, Barry M. Verdegan | 2009-09-22 |
| 7581558 | Controlled release of additives in fluid systems | Harold R. Martin, Dennis Kelly, Joseph C. Drozd, Doug Hudgens, Barry M. Verdegan | 2009-09-01 |
| 7524434 | Controlled release cooling additive composition | Yu-Sen Chen | 2009-04-28 |
| 7001531 | Sustained release coolant additive composition | Yu-Sen Chen, Doug Hudgens, Joseph C. Drozd | 2006-02-21 |
| 6878309 | Controlled release cooling additive composition | Yu-Sen Chen | 2005-04-12 |
| 6827750 | Controlled release additives in fuel systems | Joseph C. Drozd, Harold R. Martin, Dennis Kelly, Doug Hudgens | 2004-12-07 |
| 6607694 | Controlled release coolant additive composition | Yu-Sen Chen | 2003-08-19 |