Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10954430 | Low-toxicity, low-flammability, environmentally-safe, friction reducer fluid for hydraulic fracturing | Dennis Weinhold, Jerome N. Ludwig, Bernd Erdtmann, Kenneth A. Belmore | 2021-03-23 |
| 9587169 | Low-toxicity, low-flammability, environmentally-safe, friction reducer fluid for hydraulic fracturing | Dennis Weinhold, Jerome H. Ludwig, Bernd Erdtmann, Kenneth A. Belmore | 2017-03-07 |
| 7485580 | Method for removing organic electroluminescent residues from a substrate | Andrew David Johnson, Peter J. Maroulis, Mark Sistern, Steven Rogers, John B. Dickenson | 2009-02-03 |
| 7371688 | Removal of transition metal ternary and/or quaternary barrier materials from a substrate | Bing Ji, Dingjun Wu, Peter Badowski, Eugene Joseph Karwacki, Jr. | 2008-05-13 |
| 5629277 | Paint removing composition | — | 1997-05-13 |
| 5348712 | Use of carbonates in metal ion extraction | Edward T. Marquis | 1994-09-20 |
| 5324838 | Bicyclo[4.3.0]1,4,7-triazanon-4-ene-one useful in the extraction of precious metals | George P. Speranza | 1994-06-28 |
| 5298618 | Macrocyclic oxamides | George P. Speranza, Donald H. Champion | 1994-03-29 |
| 5182025 | Method of neutralizing polyol catalysts and products | Roger G. Duranleau, Michael Cuscurida | 1993-01-26 |