Inventor
Peter M. Kent
Inventor
Warthill, GB
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling50%
F16KValves17%
B01DSeparation6%
F02CGas-turbine plants6%
F16JPistons6%
H10DInorganic electric semiconductor devices6%
H10NElectric solid-state devices not otherwise provided for6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
7,407,011'Tubing annulus plug valve'20086,668,933'Ball valve seat and support'20036,454,015'Shearing gate valve'20025,638,903'Adjustable mandrel hanger system'19975,607,019'Adjustable mandrel hanger for a jackup drilling rig'19975,375,812'Dynamic metal-to-metal seal'19945,370,362'Gate valve'19945,311,947'Preselected casing tensioning system'19945,307,879'Positive lockdown for metal seal'19944,949,786'Emergency casing hanger'19904,728,844'Piezoelectric transducer and components therefor'19884,268,284'Multichannel particle separator of the anti-icing type'19814,163,366'Apparatus for disposal of leaking fluids in a turbofan engine'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1981Patents assigned to AVCO CORP (2)· patent assignee history
1979–1981Based in Stratford, CT, US· patent location history
1988Patents assigned to COGENT LTD (1)· patent assignee history
1990Patents assigned to VECTO GRAY INC (1)· patent assignee history
1994–2003Patents assigned to VETCO GRAY INC ABB (8)· patent assignee history
1994–1997Based in Warthill, GB· patent location history
1994Based in Greengates, GB· patent location history
2002–2008Based in Inverurie, GB· patent location history
2003Based in Aberdeen, GB· patent location history
2008Patents assigned to VETCO GRAY INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VETCO GRAY INC ABB | 8 | 1994–2003 |
| AVCO CORP | 2 | 1979–1981 |
| COGENT LTD | 1 | 1988 |
| VECTO GRAY INC | 1 | 1990 |
| VETCO GRAY INC | 1 | 2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Warthill, GB | 5 | 1994–1997 |
| Inverurie, GB | 2 | 2002–2008 |
| Stratford, CT, US | 2 | 1979–1981 |
| Aberdeen, GB | 1 | 2003 |
| Greengates, GB | 1 | 1994 |