Patents per Year
Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7655209 | Process for production of carbon black | Frederick H. Rumpf, Roscoe W. Taylor | 2010-02-02 | $6,788,000 |
| 7638068 | Cogeneration system for grease separation and power production | — | 2009-12-29 | |
| 7431909 | Process for production of carbon black | Frederick H. Rumpf, Roscoe W. Taylor | 2008-10-07 | $4,362,000 |
| 6349678 | Carbon black tailgas fueled reciprocating engines | Edward D. Stowell | 2002-02-26 | $5,137,000 |
| 6182614 | Carbon black tailgas fueled reciprocating engines | Edward D. Stowell | 2001-02-06 | $25,764,000 |