Hunter; Douglas Andrew
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hunter; Douglas Andrew.The latest application filed is for "pipe handler and pipe loader for a well rig".
- Hunter; Douglas Andrew - Calgary CA
- Hunter; Douglas Andrew - Alberta CA
- Hunter; Douglas Andrew - Cochrane CA
| Patent | Date |
|---|---|
| Vehicle support structure for a worksite Grant 11,402,053 - Clarke , et al. August 2, 2 | 2022-08-02 |
| Automated drilling/service rig apparatus Grant 11,230,886 - Taggart , et al. January 25, 2 | 2022-01-25 |
| Pipe handler and pipe loader for a well rig Grant 10,988,994 - Clarke , et al. April 27, 2 | 2021-04-27 |
| Pipe Handler And Pipe Loader For A Well Rig App 20200332610 - CLARKE; Jason Peter ; et al. | 2020-10-22 |
| Automated Drilling/service Rig Apparatus App 20200325730 - TAGGART; MARK CHARLES ; et al. | 2020-10-15 |
| Pipe handler and pipe loader for a well rig Grant 10,738,545 - Clarke , et al. A | 2020-08-11 |
| Automated drilling/service rig apparatus Grant 10,711,523 - Taggart , et al. | 2020-07-14 |
| Pipe Handler And Pipe Loader For A Well Rig App 20190003271 - CLARKE; Jason Peter ; et al. | 2019-01-03 |
| Vehicle Support Structure For A Worksite App 20180363834 - CLARKE; Daniel John ; et al. | 2018-12-20 |
| Automated Drilling/service Rig Apparatus App 20180023346 - TAGGART; MARK CHARLES ; et al. | 2018-01-25 |
| Automated drilling/service rig apparatus Grant 9,797,196 - Taggart , et al. October 24, 2 | 2017-10-24 |
| Automated Drilling/service Rig Apparatus App 20150259984 - Taggart; Mark Charles ; et al. | 2015-09-17 |
| Forage compacting method and apparatus App 20030226336 - Hunter, Douglas Andrew ; et al. | 2003-12-11 |
| Forage compacting apparatus with moisture sensor Grant 6,526,731 - Hunter , et al. March 4, 2 | 2003-03-04 |
| Forage compactor Grant 6,085,486 - Hunter , et al. July 11, 2 | 2000-07-11 |
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