Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6180911 | Material and geometry design to enhance the operation of a plasma arc | Peter Weber, Robin A. Lampson, Roger S. Brooks | 2001-01-30 |
| 5650000 | Polyphenolic vegetable extract/surfactant compositions as universal bitumen/water emulsifiers | Robert S. Custer | 1997-07-22 |
| 5578118 | Natural polyphenolic-containing vegetable extract modified bitumen and anti-stripper compositions, method of manufacture and use | Robert S. Custer | 1996-11-26 |
| 5407476 | Quebracho/surfactant compositions as universal bitumen/water emulsifiers | Robert S. Custer | 1995-04-18 |
| 5401308 | Quebracho-modified bitumen compositions, method of manufacture and use | Robert S. Custer | 1995-03-28 |