Inventor
Donald R. Greenlee
Inventor
Murchison, TX, US
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling83%
B29CShaping or joining of plastics3%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables3%
G06FElectric digital data processing3%
H04LTransmission of digital information, e.g. telegraphic communication3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
11,015,415Filament-reinforced composite material with load-aligned filament windings202110,986,147Distributedly synchronized edge playout system202110,487,615Cup plug having a large flow-through inside diameter201910,400,535Retrievable downhole tool20199,915,114'Retrievable downhole tool'20189,551,197'Hydrostatic setting tool'20179,121,240'Hydrostatic setting tool'20159,004,160'Downhole tool apparatus with slip plate and wedge'20158,893,780'Downhole apparatus with packer cup and slip'20148,336,635'Downhole apparatus with packer cup and slip'20128,113,276'Downhole apparatus with packer cup and slip'20125,148,866'Well tool anchoring mechanism with improved slip release'19925,129,453'Quick set well packer'19925,103,901'Hydraulically operated well packer'19924,856,583'Apparatus for treating well bores'19894,791,992'Hydraulically operated and released isolation packer'19884,750,559'Retrievable anchor assembly'19884,702,313'Slip and slip assembly for well tools'19874,593,765'Tubing resettable well tool'19864,583,590'Slip releasing apparatus'19864,530,398'Retrievable well bore packer'19854,391,326'Stinger assembly for oil well tool'19834,265,459'Swab cup reinforcing member support'19814,189,001'Friction spring and slip retainer for a mechanical setting tubing anchor'19804,109,714'Shutdown system for high pressure well'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1992Patents assigned to DRESSER IND (13)· patent assignee history
1978–1981Based in Dallas, TX, US· patent location history
1983–1992Based in Cedar Hill, TX, US· patent location history
1985Based in Tulsa, OK, US· patent location history
2012–2017Patents assigned to GREENLEE DONALD JONATHAN (5)· patent assignee history
2012–2014Patents assigned to GREENLEE DONALD ROY (3)· patent assignee history
2012–2021Based in Murchison, TX, US· patent location history
2015–2018Patents assigned to GREENLEE DONALD R (4)· patent assignee history
2019–2021Patents assigned to NINE DOWNHOLE TECH LLC (3)· patent assignee history
2021Based in Cincinnati, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DRESSER IND | 13 | 1978–1992 |
| GREENLEE DONALD JONATHAN | 5 | 2012–2017 |
| GREENLEE DONALD Rself | 4 | 2015–2018 |
| GREENLEE DONALD ROYself | 3 | 2012–2014 |
| NINE DOWNHOLE TECH LLC | 3 | 2019–2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Murchison, Texas, US | 10 | 2012–2021 |
| Cedar Hill, Texas, US | 10 | 1983–1992 |
| Dallas, Texas, US | 3 | 1978–1981 |
| Cincinnati, OH, US | 1 | 2021 |
| Tulsa, OK, US | 1 | 1985 |