loadpatents
Patent applications and USPTO patent grants for HALL; William Kevin.The latest application filed is for "long-stroke pumping unit".
Patent | Date |
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Long-stroke Pumping Unit App 20210254616 - ROBISON; Clark E. ;   et al. | 2021-08-19 |
Direct drive pumping unit Grant 10,890,175 - Thomas , et al. January 12, 2 | 2021-01-12 |
Long-stroke pumping unit Grant 10,844,852 - Robison , et al. November 24, 2 | 2020-11-24 |
Pump rod connection Grant 10,669,787 - Song , et al. | 2020-06-02 |
Long stroke pumping unit Grant 10,400,761 - Robison , et al. Sep | 2019-09-03 |
Direct Drive Pumping Unit App 20190234400 - THOMAS; Benson ;   et al. | 2019-08-01 |
Long-stroke Pumping Unit App 20190063426 - ROBISON; Clark E. ;   et al. | 2019-02-28 |
Long-stroke pumping unit Grant 10,113,544 - Robison , et al. October 30, 2 | 2018-10-30 |
Pump Rod Connection App 20180163485 - Song; Fei ;   et al. | 2018-06-14 |
Long-stroke Pumping Unit App 20160245276 - ROBISON; Clark E. ;   et al. | 2016-08-25 |
Long Stroke Pumping Unit App 20160222957 - ROBISON; Clark E. ;   et al. | 2016-08-04 |
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