Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8728217 | Filtration media and applications thereof | Vedagiri Velpari, Jian Meng, Timothy E. Marsh, James H. P. Watson, Stuart D. Hellring +1 more | 2014-05-20 |
| 5308676 | Torchable roll roofing membrane | Richard Gelles, Mark A. Berggren | 1994-05-03 |
| H1250 | Modification of asphalt | Anne R. Spell, Richard Gelles, James H. Collins, Mark A. Berggren, Mark G. Bouldin | 1993-11-02 |
| H876 | Bitumen composition | James R. Erickson, James H. Collins | 1991-01-01 |
| 4820578 | Polyketone roofing membranes | Richard L. Danforth | 1989-04-11 |
| 4775419 | Metal amine complexes for improving the bond strength properties of asphalt | Larry M. Girdler, Thomas G. Kugele | 1988-10-04 |
| 4743304 | Asphalt antistripping agents containing organic amines and Portland cement | Thomas G. Kugele | 1988-05-10 |
| 4639273 | Asphalt-adhesion improving additives prepared by formaldehyde condensation with polyamines | Thomas G. Kugele | 1987-01-27 |
| 4430127 | Epoxylated amine asphalt anti-stripping agent | Raymond S. Dalter | 1984-02-07 |
| 4391757 | Organic antimony containing stabilizer compositions for halogenated polymers | Thomas G. Kugele | 1983-07-05 |