Inventor
Charles D. Morrill
Inventor
Bellaire, TX, US
Overview
Patents· 33 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling51%
F16LPipes19%
Y10TTechnical subjects covered by former us classification18%
F16JPistons4%
F16KValves4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
G06FElectric digital data processing2%
PatentTitleYear
RE037538'Ram type blowout preventer'20026,173,770'Shear ram for ram-type blowout preventer'20016,089,321'Pressure balanced choke and kill line connector'20005,655,745'Low profile and lightweight high pressure blowout preventer'19975,647,572'Low profile and lightweight high pressure blowout preventer'19975,645,098'Low profile and lightweight high pressure blowout preventer'19975,642,872'Low profile and lightweight high pressure blowout preventer'19975,638,855'Low profile and lightweight high pressure blowout preventer'19975,343,946'High pressure packer for a drop-in check valve'19945,255,890'Ram type blowout preventer'19934,579,372'Flowline connector seal'19864,554,976'Test tool for subsea blowout preventer stack'19854,513,823'Cylindrical gate valve apparatus and method'19854,502,534'Flow diverter'19854,496,173'Threaded coupling'19854,476,935'Safety valve apparatus and method'19844,477,205'Apparatus for connecting underwater flow line hubs'19844,476,897'Flowline connector seal'19844,444,250'Flow diverter'19844,402,773'Remote automatic make-up stab-in sealing system'19834,382,717'Connection of underwater lines'19834,371,291'Underwater flowline connector'19834,371,005'Protective cover for underwater flow line hub'19834,363,465'Extreme temperature, high pressure balanced, rising stem gate valve with super preloaded, stacked, solid lubricated, metal-to-metal seal'19824,346,919'Remote automatic make-up stab-in sealing system'19824,329,085'Connection of underwater lines'19824,264,054'Metal-to-metal seat hub seals'19814,228,704'Marine riser tool'19804,229,027'Remote automatic make-up stab-in sealing system'19804,109,942'Seal'19784,097,069'Marine riser connector'19784,056,272'Seal'19773,987,419'High speed information processing system'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Patents assigned to GOODYEAR AEROSPACE CORP (1)· patent assignee history
1976Based in Olmsted Falls, OH, US· patent location history
1977Patents assigned to MORRILL CHARLES DONOVAN (1)· patent assignee history
1977–1986Based in Bellaire, TX, US· patent location history
1978–1981Patents assigned to MCEVOY OILFIELD EQUIPMENT CO (5)· patent assignee history
1982–1986Patents assigned to SMITH INTERNATIONAL (10)· patent assignee history
1984–2002Patents assigned to HYDRIL CO (16)· patent assignee history
1984–2002Based in Humble, TX, US· patent location history
1985Based in Houston, TX, US· patent location history
2001Based in Benjamin, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HYDRIL CO | 16 | 1984–2002 |
| SMITH INTERNATIONAL | 10 | 1982–1986 |
| MCEVOY OILFIELD EQUIPMENT CO | 5 | 1978–1981 |
| GOODYEAR AEROSPACE CORP | 1 | 1976 |
| MORRILL CHARLES DONOVANself | 1 | 1977 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bellaire, Texas, US | 16 | 1977–1986 |
| Humble, Texas, US | 14 | 1984–2002 |
| Benjamin, Texas, US | 1 | 2001 |
| Houston, Texas, US | 1 | 1985 |
| Olmsted Falls, OH, US | 1 | 1976 |