Inventor
Lawrence E. Wells
Inventor
Yorba Linda, CA, US
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling43%
Y10TTechnical subjects covered by former us classification14%
B25JManipulators5%
F16KValves5%
A61BDiagnosis3%
A61FFilters implantable into blood vessels3%
F01PCooling of machines or engines in general3%
F02DControlling combustion engines3%
F02NStarting of combustion engines3%
F16JPistons3%
PatentTitleYear
10,081,110Self-aligning pipe gripping assembly and method of making and using the same20189,452,535'Self-aligning pipe gripping assembly and method of making and using the same'20169,249,902'Sealing system'20168,752,653'Dual ball upper internal blow out preventer valve'20148,590,762'Staple cartridge cavity configurations'20138,448,320'Clamp apparatus for threadedly connected tubulars'20137,784,535'Top drive systems with reverse bend bails'20107,784,834'Clamp apparatus for threadedly connected tubulars'20107,784,565'Top drive systems with main shaft deflecting sensing'20107,748,445'Top drive with shaft seal isolation'20107,748,473'Top drives with shaft multi-seal'20107,735,565'Dual-saddle ear support apparatus'20107,665,530'Tubular grippers and top drive systems'20107,401,664'Top drive systems'2008D0572119'Support bail'20087,287,544'Triple valve blow out preventer'20077,121,295'Internal blow out preventer ball and seat'20064,478,111'Suspension of adjustable pipe spinner'19844,425,827'Suspension of pipe spinner'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–2013Patents assigned to VARCO INT (9)· patent assignee history
1984Based in Anaheim, CA, US· patent location history
2006–2018Based in Yorba Linda, CA, US· patent location history
2010–2018Patents assigned to NAT OILWELL VARCO LP (8)· patent assignee history
2013–2014Patents assigned to WELLS LAWRENCE E (2)· patent assignee history
2013Patents assigned to ERVIN HOWARD (1)· patent assignee history
2013Based in Cincinnati, OH, US· patent location history
2014Patents assigned to BRAMAN ARTHUR W (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VARCO INT | 9 | 1984–2013 |
| NAT OILWELL VARCO LP | 8 | 2010–2018 |
| WELLS LAWRENCE Eself | 2 | 2013–2014 |
| BRAMAN ARTHUR W | 1 | 2014 |
| ERVIN HOWARD | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yorba Linda, California, US | 16 | 2006–2018 |
| Anaheim, California, US | 2 | 1984 |
| Cincinnati, OH, US | 1 | 2013 |