Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12180133 | Photochlorination of partially-chlorinated chloromethanes to carbon tetrachloride | Robert L. Zeller, III, Darrell G. HOLLIS, Brian CALDERWOOD, Rodney L. Klausmeyer, John Lee Dawkins | 2024-12-31 |
| 12054444 | Photochlorination of chloroform to carbon tetrachloride | Robert L. Zeller, III, Darrell G. HOLLIS, Brian CALDERWOOD, Rodney L. Klausmeyer | 2024-08-06 |
| 11945761 | Process for the production of chlorinated hydrocarbons | John Lee Dawkins, Darrell G. HOLLIS, Brian CALDERWOOD, Michael A. GARMON | 2024-04-02 |
| 11780792 | Photochlorination of partially-chlorinated chloromethanes to carbon tetrachloride | Robert L. Zeller, III, Darrell G. HOLLIS, Brian CALDERWOOD, Rodney L. Klausmeyer, John Lee Dawkins | 2023-10-10 |
| 11584703 | Photochlorination of chloroform to carbon tetrachloride | Robert L. Zeller, III, Darrell G. HOLLIS, Brian CALDERWOOD, Rodney L. Klausmeyer | 2023-02-21 |
| 11565988 | Method for making 1,1,3,3-tetrachloropropene | Rodney L. Klausmeyer, Darrell G. HOLLIS, John Lee Dawkins, Derrek Rae Burrows | 2023-01-31 |
| 11466103 | Methods for providing polyvinyl chloride particles for preparing chlorinated polyvinyl chloride | Lance A. Mayer, Rodney L. Klausmeyer | 2022-10-11 |
| 11453630 | Catalyst and process for oxychlorination of ethylene to dichloroethane | — | 2022-09-27 |
| 11104627 | Method for making 1,1,3,3-tetrachloropropene | Rodney L. Klausmeyer, Darrell G. HOLLIS, John Lee Dawkins, Derrek Rae Burrows | 2021-08-31 |
| 10981150 | Catalyst and process for oxychlorination of ethylene to dichloroethane | — | 2021-04-20 |
| 10787404 | Methods for producing halogenated propanes | John Lee Dawkins, Darrell G. HOLLIS, Brian CALDERWOOD | 2020-09-29 |
| 10787405 | Photochlorination of chloroform to carbon tetrachloride | Robert L. Zeller, III, Darrell G. HOLLIS, Brian CALDERWOOD, Rodney L. Klausmeyer | 2020-09-29 |
| 10562832 | Method for making 1,1,3,3-tetrachloropropene | Rodney L. Klausmeyer, Darrell G. HOLLIS, John Lee Dawkins, Derrek Rae Burrows | 2020-02-18 |
| 10487157 | Methods for chlorinating polyvinyl chloride | Lance A. Mayer, Rodney L. Klausmeyer | 2019-11-26 |
| 10207970 | Methods for recovering chlorinated hydrocarbons | John Lee Dawkins, Darrell G. HOLLIS, Rodney L. Klausmeyer, Michael A. GARMON | 2019-02-19 |
| 9969664 | Method for making 1,1,3,3-tetrachloropropene | Rodney L. Klausmeyer, Darrell G. HOLLIS, John Lee Dawkins, Derrek Rae Burrows | 2018-05-15 |
| 9744525 | Catalyst for the oxychlorination of ethylene to 1, 2-dichloroethane | Rolf Tompers | 2017-08-29 |
| 9598337 | Methods for recovering chlorinated hydrocarbons | John Lee Dawkins, Darrell G. HOLLIS, Rodney L. Klausmeyer, Michael A. GARMON | 2017-03-21 |
| 9586877 | Methods for recovering chlorinated hydrocarbons | John Lee Dawkins, Darrell G. HOLLIS, Rodney L. Klausmeyer, Michael A. GARMON | 2017-03-07 |
| 9248434 | Catalyst for the oxychlorination of ethylene to 1, 2-dichloroethane | Rolf Tompers | 2016-02-02 |
| 9073046 | Catalyst and process for oxychlorination of ethylene to dichloroethane | — | 2015-07-07 |
| 9067858 | Methods for recovering 1,1,1,2,3-pentachloropropane | John Lee Dawkins, Darrell G. HOLLIS, Rodney L. Klausmeyer, Michael A. GARMON | 2015-06-30 |
| 8956993 | Catalyst compositions and process for oxychlorination | Joseph A. Cowfer | 2015-02-17 |
| 7585806 | Catalyst compositions and process for oxychlorination | Joseph A. Cowfer | 2009-09-08 |
| 6071561 | Chemical vapor deposition of fluorine-doped zinc oxide | Roy G. Gordon, Haifan Liang | 2000-06-06 |