Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5348994 | Polymer-modified functionalized asphalt compositions and methods of preparation (C-2747) | Dennis G. Peiffer, Daniel J. McHugh | 1994-09-20 |
| 5336705 | Polymer-modified, oxidized asphalt compositions and methods of preparation | Nicholas C. Nahas | 1994-08-09 |
| 5288773 | Sulfonated unhydrogenated copolymers of styrene and butadiene | Dennis G. Peiffer | 1994-02-22 |
| 5248407 | Storage stable polymer modified asphalt paving binder | Jacques G. Bardet, Nicholas C. Nahas | 1993-09-28 |
| 5215649 | Method for upgrading steam cracker tars | Dane C. Grenoble, Roy T. Halle, Harold W. Helmke | 1993-06-01 |
| 5055181 | Hydropyrolysis-gasification of carbonaceous material | Peter S. Maa | 1991-10-08 |
| 5006223 | Addition of radical initiators to resid conversion processes | Irwin A. Wiehe, William N. Olmstead | 1991-04-09 |
| 4363714 | O-Alkylated/O-acylated coal liquids | Ronald Liotta | 1982-12-14 |
| 4351716 | Liquefaction process | John Stone, Syamal K. Poddar | 1982-09-28 |
| 4277327 | Treatment of phenol-containing feed streams | Richard H. Schlosberg | 1981-07-07 |
| 4259173 | Treatment of coal liquids | Ronald Liotta | 1981-03-31 |
| 4252633 | Coal liquefaction process | Robert B. Long, Richard H. Schlosberg | 1981-02-24 |
| 4250014 | Coal liquefaction process | Robert B. Long, Lonnie W. Vernon | 1981-02-10 |
| 4245060 | Functional group containing cyclic diolefin butyl rubbers | Kenneth W. Powers, Robert Roper | 1981-01-13 |
| 4227989 | Liquefaction of calcium-containing subbituminous coals and coals of lower rank | John W. Taunton | 1980-10-14 |
| 4228254 | Functional group containing cyclic diolefin butyl rubbers | Kenneth W. Powers, Robert Roper | 1980-10-14 |
| 4193771 | Alkali metal recovery from carbonaceous material conversion process | David W. Sharp, LeRoy R. Clavenna, Joe M. Tsou | 1980-03-18 |