DH

Darrell G. HOLLIS

OC Occidental Chemical: 15 patents #10 of 341Top 3%
📍 Conway Springs, KS: #1 of 12 inventorsTop 9%
🗺 Kansas: #583 of 12,005 inventorsTop 5%
Overall (All Time): #311,778 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
12180133 Photochlorination of partially-chlorinated chloromethanes to carbon tetrachloride Robert L. Zeller, III, Keith S. Kramer, Brian CALDERWOOD, Rodney L. Klausmeyer, John Lee Dawkins 2024-12-31
12054444 Photochlorination of chloroform to carbon tetrachloride Robert L. Zeller, III, Keith S. Kramer, Brian CALDERWOOD, Rodney L. Klausmeyer 2024-08-06
11945761 Process for the production of chlorinated hydrocarbons John Lee Dawkins, Keith S. Kramer, Brian CALDERWOOD, Michael A. GARMON 2024-04-02
11780792 Photochlorination of partially-chlorinated chloromethanes to carbon tetrachloride Robert L. Zeller, III, Keith S. Kramer, Brian CALDERWOOD, Rodney L. Klausmeyer, John Lee Dawkins 2023-10-10
11584703 Photochlorination of chloroform to carbon tetrachloride Robert L. Zeller, III, Keith S. Kramer, Brian CALDERWOOD, Rodney L. Klausmeyer 2023-02-21
11565988 Method for making 1,1,3,3-tetrachloropropene Rodney L. Klausmeyer, Keith S. Kramer, John Lee Dawkins, Derrek Rae Burrows 2023-01-31
11104627 Method for making 1,1,3,3-tetrachloropropene Rodney L. Klausmeyer, Keith S. Kramer, John Lee Dawkins, Derrek Rae Burrows 2021-08-31
10787404 Methods for producing halogenated propanes John Lee Dawkins, Keith S. Kramer, Brian CALDERWOOD 2020-09-29
10787405 Photochlorination of chloroform to carbon tetrachloride Robert L. Zeller, III, Keith S. Kramer, Brian CALDERWOOD, Rodney L. Klausmeyer 2020-09-29
10562832 Method for making 1,1,3,3-tetrachloropropene Rodney L. Klausmeyer, Keith S. Kramer, John Lee Dawkins, Derrek Rae Burrows 2020-02-18
10207970 Methods for recovering chlorinated hydrocarbons John Lee Dawkins, Rodney L. Klausmeyer, Keith S. Kramer, Michael A. GARMON 2019-02-19
9969664 Method for making 1,1,3,3-tetrachloropropene Rodney L. Klausmeyer, Keith S. Kramer, John Lee Dawkins, Derrek Rae Burrows 2018-05-15
9598337 Methods for recovering chlorinated hydrocarbons John Lee Dawkins, Rodney L. Klausmeyer, Keith S. Kramer, Michael A. GARMON 2017-03-21
9586877 Methods for recovering chlorinated hydrocarbons John Lee Dawkins, Rodney L. Klausmeyer, Keith S. Kramer, Michael A. GARMON 2017-03-07
9067858 Methods for recovering 1,1,1,2,3-pentachloropropane John Lee Dawkins, Rodney L. Klausmeyer, Keith S. Kramer, Michael A. GARMON 2015-06-30