Inventor
Adrian Marica
Inventor
Cypress, TX, US
Overview
Patents· 24 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Bprimary
F04BPositive-displacement machines for liquids29%
E21BEarth or rock drilling15%
F16KValves15%
Y10TTechnical subjects covered by former us classification15%
B61BRailway systems4%
F04DNon-positive-displacement pumps4%
F15DFluid dynamics, i.e. methods or means for influencing the flow of gases or liquids4%
F16HGearing4%
A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons2%
B22DCasting of metals2%
PatentTitleYear
11,131,308Elastic and sealing elements in multi-stage pumps202111,105,322Direct drive pump assemblies202111,035,348Reciprocating pumps having a pivoting arm202110,514,106Poppet valve with variable dampener and elastically supported guide201910,094,366Valve having opposed curved sealing surfaces on a valve member and a valve seat to facilitate effective sealing20189,903,480'Poppet valve with integrated dampener'20189,546,648'Dampeners for pumping systems'20179,464,494'Track guiding system'20169,366,248'Hydraulically controlled reciprocating pump system'20169,328,729'Pumping systems with dedicated surge dampeners'20169,121,397'Pulsation dampening system for a reciprocating pump'20159,073,116'Carbon foam metal matrix composite and mud pump employing same'20159,074,421'Self-locking top drive guide system'20158,978,705'Apparatus for reducing turbulence in a fluid stream'20158,827,242'Valve cartridge for pump systems'20148,757,592'Poppet valve for pump systems with non-rigid connector to facilitate effective sealing'20148,714,193'Poppet valve with integrated dampener'20148,591,200'Hydraulically controlled reciprocating pump system'20138,523,721'Belt tensioner'20138,449,265'Hydraulically actuated reciprocating pump'20138,424,616'Track guiding system'20138,235,195'Engine clutch and method of using same'20128,220,496'Apparatus for reducing turbulence in a fluid stream'20126,343,908'Passenger entrance ramp for mass transit vehicle'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002Based in Winnipeg, CA· patent location history
2012–2021Patents assigned to NAT OILWELL VARCO LP (22)· patent assignee history
2012–2018Patents assigned to MARICA ADRIAN (14)· patent assignee history
2012–2021Based in Cypress, TX, US· patent location history
2013Patents assigned to MIHAI IONESCU (1)· patent assignee history
2015Patents assigned to KONDO KENNETH S (1)· patent assignee history
2021Patents assigned to NAT OILWELL VAREO L P (2)· patent assignee history
2021Based in Houston, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NAT OILWELL VARCO LP | 22 | 2012–2021 |
| MARICA ADRIANself | 14 | 2012–2018 |
| NAT OILWELL VAREO L P | 2 | 2021 |
| KONDO KENNETH S | 1 | 2015 |
| MIHAI IONESCU | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cypress, Texas, US | 22 | 2012–2021 |
| Houston, Texas, US | 1 | 2021 |
| Winnipeg, CA | 1 | 2002 |