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MCEVOY OILFIELD EQUIPMENT CO
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PITTSBURGH, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Single double backseat
Patent number
4,272,055
Issue date
Jun 9, 1981
McEvoy Oilfield Equipment Company
David P. Herd
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Metal-to-metal seat hub seals
Patent number
4,264,054
Issue date
Apr 28, 1981
McEvoy Oilfield Equipment Company
Charles D. Morrill
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Remote automatic make-up stab-in sealing system
Patent number
4,229,027
Issue date
Oct 21, 1980
McEvoy Oilfield Equipment Company
Charles D. Morrill
E21 - EARTH DRILLING MINING
Information
Patent Grant
Marine riser tool
Patent number
4,228,704
Issue date
Oct 21, 1980
McEvoy Oilfield Equipment Company
Robert D. Barnett
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pipe joint with remotely operable latch
Patent number
4,185,856
Issue date
Jan 29, 1980
McEvoy Oilfield Equipment Company
John W. McCaskill
E21 - EARTH DRILLING MINING
Information
Patent Grant
Seal
Patent number
4,109,942
Issue date
Aug 29, 1978
McEvoy Oilfield Equipment Company
Charles D. Morrill
E21 - EARTH DRILLING MINING
Information
Patent Grant
Marine riser connector
Patent number
4,097,069
Issue date
Jun 27, 1978
McEvoy Oilfield Equipment Company
Charles D. Morrill
E21 - EARTH DRILLING MINING
Information
Patent Grant
Run-in and tie back apparatus
Patent number
4,093,030
Issue date
Jun 6, 1978
McEvoy Oilfield Equipment Company
James Vaull Bonds
E21 - EARTH DRILLING MINING
Information
Patent Grant
Underwater well completion method and apparatus
Patent number
4,053,023
Issue date
Oct 11, 1977
McEvoy Oilfield Equipment Co.
David P. Herd
E21 - EARTH DRILLING MINING
Information
Patent Grant
Run-in and tie back apparatus
Patent number
4,046,405
Issue date
Sep 6, 1977
McEvoy Oilfield Equipment Co.
James Vaull Bonds
E21 - EARTH DRILLING MINING
Information
Patent Grant
High pressure valve
Patent number
4,029,294
Issue date
Jun 14, 1977
McEvoy Oilfield Equipment Co.
John Walton McCaskill
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Underwater well completion method and apparatus
Patent number
3,974,875
Issue date
Aug 17, 1976
McEvoy Oilfield Equipment Co.
David P. Herd
E21 - EARTH DRILLING MINING
Information
Patent Grant
Underwater well completion method and apparatus
Patent number
3,971,576
Issue date
Jul 27, 1976
McEvoy Oilfield Equipment Co.
David P. Herd
E21 - EARTH DRILLING MINING
Information
Patent Grant
Control line exiting coupling
Patent number
3,965,977
Issue date
Jun 29, 1976
McEvoy Oilfield Equipment Co.
John Beson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mechanically operated breech block
Patent number
3,948,545
Issue date
Apr 6, 1976
McEvoy Oilfield Equipment Co.
James Vaull Bonds
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73061406 - MCEVOY
Serial number
73061406
Registration number
1058973
Filing date
Aug 25, 1975
MCEVOY OILFIELD EQUIPMENT CO.
7 - Machines and machine tools
Information
Trademark
73049912 - BREECH BLOCK
Serial number
73049912
Registration number
1086249
Filing date
Apr 18, 1975
MCEVOY OILFIELD EQUIPMENT CO.
6 - Common metals and their alloys