Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9500567 | Soil sampler | David Scheiderer, Dwayne Maddux, Evan Delk | 2016-11-22 |
| 9116078 | Soil sampler and method | David Scheiderer, Dwayne Maddox | 2015-08-25 |
| 4311614 | Catalysts for water dealkylation of aromatic hydrocarbons | Daniel Duprez | 1982-01-19 |
| 4268702 | Catalytic conversion of aromatic fractions in the presence of steam | Daniel Duprez | 1981-05-19 |
| 4238368 | Water dealkylation catalyst of aromatic hydrocarbons | Daniel Duprez | 1980-12-09 |
| 4233186 | Catalysts for water dealkylation of aromatic hydrocarbons | Daniel Duprez | 1980-11-11 |