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Kent, WA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Down reaming apparatus having hydraulically controlled stabilizer
Patent number
5,429,198
Issue date
Jul 4, 1995
The Robbins Company
Llewellan Anderson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drive head assembly for drilling machine
Patent number
5,370,194
Issue date
Dec 6, 1994
The Robbins Company
Llewellan Anderson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Down reaming apparatus
Patent number
5,325,932
Issue date
Jul 5, 1994
The Robbins Company
Llewellan Anderson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Down reaming apparatus
Patent number
5,308,150
Issue date
May 3, 1994
The Robbins Company
Thomas C. Whitehouse
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mobile mining machine having tilted swing axis and method
Patent number
5,234,257
Issue date
Aug 10, 1993
The Robbins Company
David B. Sugden
E21 - EARTH DRILLING MINING
Information
Patent Grant
Roller cutter assembly having adjustable ring cutter spacing
Patent number
5,234,064
Issue date
Aug 10, 1993
The Robbins Company
Carl E. Lenaburg
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunnel boring machine with continuous forward propulsion
Patent number
5,205,613
Issue date
Apr 27, 1993
The Robbins Company
Howard K. Brown
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunneling machine having liquid balance low flow slurry system
Patent number
5,203,614
Issue date
Apr 20, 1993
The Robbins Company
Richard J. Robbins
E21 - EARTH DRILLING MINING
Information
Patent Grant
Gantry-type mobile mining machine
Patent number
5,192,116
Issue date
Mar 9, 1993
The Robbins Company
John Turner
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tramming mobile mining machine
Patent number
5,192,115
Issue date
Mar 9, 1993
The Robbins Company
Thomas M. Hartman
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hopper and hood combination for tunneling machine and tunneling mac...
Patent number
5,127,711
Issue date
Jul 7, 1992
The Robbins Company
David T. Cass
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock boring machine drive head with up and down drilling capability
Patent number
5,012,878
Issue date
May 7, 1991
The Robbins Company
Llewellan Anderson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Shaft boring machine and method
Patent number
4,646,853
Issue date
Mar 3, 1987
The Robbins Company
David B. Sugden
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mobile mining machine and method
Patent number
4,548,442
Issue date
Oct 22, 1985
The Robbins Company
David B. Sugden
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunnel boring machine
Patent number
4,548,443
Issue date
Oct 22, 1985
The Robbins Company
John Turner
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotary cutterhead for an earth boring machine
Patent number
RE31511
Issue date
Jan 31, 1984
The Robbins Company
Barry A. Spencer
299 - Mining or in situ disintegration of hard material
Information
Patent Grant
Double shield tunnel boring machine
Patent number
4,420,188
Issue date
Dec 13, 1983
The Robbins Company
Richard J. Robbins
E21 - EARTH DRILLING MINING
Information
Patent Grant
Raise bit with cutters stepped in a spiral and flywheel
Patent number
4,381,038
Issue date
Apr 26, 1983
The Robbins Company
David B. Sugden
E21 - EARTH DRILLING MINING
Information
Patent Grant
Earth boring apparatus
Patent number
4,365,677
Issue date
Dec 28, 1982
The Robbins Company
Lloyd J. Owens
E21 - EARTH DRILLING MINING
Information
Patent Grant
Conveyor mounted excavator
Patent number
4,283,090
Issue date
Aug 11, 1981
The Robbins Company
Tyman H. Fikse
E21 - EARTH DRILLING MINING
Information
Patent Grant
Earth boring apparatus
Patent number
4,270,618
Issue date
Jun 2, 1981
The Robbins Company
Lloyd J. Owens
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotary cutterhead for an earth boring machine
Patent number
4,234,235
Issue date
Nov 18, 1980
The Robbins Company
Richard J. Robbins
E21 - EARTH DRILLING MINING
Information
Patent Grant
Roller cutter mounts
Patent number
4,202,418
Issue date
May 13, 1980
The Robbins Company
Bruce A. Waddell
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotary cutterhead for an earth boring machine
Patent number
4,193,637
Issue date
Mar 18, 1980
The Robbins Company
Barry A. Spencer
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunnel boring machines
Patent number
4,192,556
Issue date
Mar 11, 1980
The Robbins Company
Carlo Grandori
E21 - EARTH DRILLING MINING
Information
Patent Grant
Excavator for use in a tunneling shield
Patent number
4,190,294
Issue date
Feb 26, 1980
The Robbins Company
Tyman H. Fikse
E21 - EARTH DRILLING MINING
Information
Patent Grant
Upward tunneling
Patent number
4,009,909
Issue date
Mar 1, 1977
The Robbins Company
Richard J. Robbins
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for establishing the drilling line of an overh...
Patent number
3,999,616
Issue date
Dec 28, 1976
The Robbins Company
Clayton H. Crane
E21 - EARTH DRILLING MINING
Information
Patent Grant
Continuous tunnel boring machine and method
Patent number
3,967,463
Issue date
Jul 6, 1976
The Robbins Company
Carlo Grandori
E21 - EARTH DRILLING MINING
Information
Patent Grant
Machine for boring a large diameter blind hole
Patent number
3,965,995
Issue date
Jun 29, 1976
The Robbins Company
David B. Sugden
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
74143586 - HI-TORQ
Serial number
74143586
Filing date
Mar 1, 1991
ROBBINS COMPANY, THE
7 - Machines and machine tools
Information
Trademark
74018660 - DUROCUTTER
Serial number
74018660
Registration number
1687004
Filing date
Jan 12, 1990
ROBBINS COMPANY, THE
7 - Machines and machine tools
Information
Trademark
72407461 - ROBBINS
Serial number
72407461
Registration number
994627
Filing date
Nov 11, 1971
ROBBINS COMPANY, THE
7 - Machines and machine tools
Information
Trademark
72407462 - ROBBINS
Serial number
72407462
Registration number
981726
Filing date
Nov 11, 1971
ROBBINS COMPANY, THE
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
72407459 - R
Serial number
72407459
Registration number
957454
Filing date
Nov 11, 1971
ROBBINS COMPANY, THE
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
72407460 - R
Serial number
72407460
Registration number
970667
Filing date
Nov 11, 1971
ROBBINS COMPANY, THE
7 - Machines and machine tools