Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7992641 | Method and apparatus for on-site nitrate production for a water processing system | D. Michael Dennis | 2011-08-09 |
| 7934544 | Method and apparatus for on-site nitrate production for a water processing system | D. Michael Dennis | 2011-05-03 |
| 7828061 | Method and apparatus for on-site nitrate production for a water processing system | D. Michael Dennis | 2010-11-09 |
| 7604741 | Method for on-site production of nitrate ions | D. Michael Dennis, Bruce Alan Iiams | 2009-10-20 |
| 7514058 | Apparatus for on-site production of nitrate ions | D. Michael Dennis, Bruce Alan Iiams | 2009-04-07 |
| 5750392 | Composition for reducing the amount of and preventing the formation of hydrogen sulfide in an aqueous system, particularly in an aqueous system used in oil field applications | George T. Sperl, Kenneth A. Sandbeck | 1998-05-12 |
| 5509319 | Adapter for pipetter and hypodermic needle | — | 1996-04-23 |
| 5405531 | Method for reducing the amount of and preventing the formation of hydrogen sulfide in an aqueous system | George T. Sperl, Kenneth A. Sandbeck | 1995-04-11 |
| 5250483 | Method for treatment of catalysts using denitrifying bacteria | George T. Sperl | 1993-10-05 |
| 5165477 | Enzymatic decomposition of drilling mud | Francis J. Shell | 1992-11-24 |
| 5126051 | Enzymatic decomposition of drilling mud | Francis J. Shell | 1992-06-30 |
| 5069787 | Method and apparatus for removing cyanide from a fluid | — | 1991-12-03 |
| 4975193 | Method for removing cyanide from a fluid | — | 1990-12-04 |
| 4798801 | Production of methane by anaerobic fermentation of waste materials | — | 1989-01-17 |
| 4681758 | Shaped, flavored articles and method of producing same | Katherine J. Fruthaler, Thomas R. Hopkins, Donald H. Kubicek, Lyle R. Kallenbach | 1987-07-21 |
| 4596778 | Single cell protein from sulfur energy sources | — | 1986-06-24 |
| 4556635 | Determination of alcohol content in water imiscible organic systems | Thomas R. Hopkins | 1985-12-03 |
| 4540052 | Generation of microorganism control composition and use thereof | — | 1985-09-10 |
| 4519984 | Apparatus for carrying out sparged reaction | — | 1985-05-28 |
| 4518489 | Oil Treatment | — | 1985-05-21 |
| 4515700 | Gelled acid composition | — | 1985-05-07 |
| 4450908 | Enhanced oil recovery process using microorganisms | — | 1984-05-29 |
| 4446919 | Enhanced oil recovery using microorganisms | — | 1984-05-08 |
| 4439523 | Production of single cell protein material | Emil A. Malick, John W. Vanderveen, Eugene H. Wegner | 1984-03-27 |
| 4414334 | Oxygen scavenging with enzymes | — | 1983-11-08 |