5 Patents
#24 in Conroe, TX
#3,252 in Texas
#50,237 in US
Drexel Oilfield Services, Inc.
Forward Citations = 153
4 inventors:
Conroe, TX, United States of America
4 inventors (with patents filed for the assignee):
D Wayne Van Winkle (3 out of 5 patents)
Denzal Wayne Van Winkle (1 out of 19 patents)
Thomas C Adams (1 out of 43 patents)
4. Bobby G Hurst (1 out of 1 patent)
5 patents:
#24 in Conroe, TX
#3,252 in Texas
#50,237 in US
4 inventors: