LONGYEAR COMPANY

Organization

MINNEAPOLIS, MN, US

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Overcenter toggle latch apparatus
- Patent number 5,325,930
- Issue date Jul 5, 1994
- Longyear Company
- Simon J. Harrison
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling latch apparatus
- Patent number 5,267,620
- Issue date Dec 7, 1993
- Longyear Company
- Kevin J. Lee
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rod handler apparatus
- Patent number 5,183,366
- Issue date Feb 2, 1993
- Longyear Company
- Ivor N. Paech
- E21 - EARTH DRILLING MINING
Information Patent Grant
Built-in rack apparatus
- Patent number 5,105,687
- Issue date Apr 21, 1992
- Longyear Company
- Ivor N. Paech
- E21 - EARTH DRILLING MINING
Information Patent Grant
Powered wrench apparatus
- Patent number 5,040,438
- Issue date Aug 20, 1991
- Longyear Company
- Joseph E. R. Rousseau
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cockable corebreaker apparatus
- Patent number 5,031,708
- Issue date Jul 16, 1991
- Longyear Company
- Christopher A. James
- E21 - EARTH DRILLING MINING
Information Patent Grant
Positive latch wire line core barrel apparatus
- Patent number 4,834,198
- Issue date May 30, 1989
- Longyear Company
- Terrence L. Thompson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Reverse circulation bit apparatus
- Patent number 4,823,890
- Issue date Apr 25, 1989
- Longyear Company
- Alan F. Lang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fast descent core barrel apparatus
- Patent number 4,800,969
- Issue date Jan 31, 1989
- Longyear Company
- Terrence L. Thompson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Concrete sawing machine propulsion control apparatus
- Patent number 4,375,212
- Issue date Mar 1, 1983
- Longyear Company
- William R. Santschi
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Rod break-out and make-up tool
- Patent number 4,309,922
- Issue date Jan 12, 1982
- Longyear Company
- Gary H. Beckley
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Pivoting foot clamp and mounting frame
- Patent number 4,297,771
- Issue date Nov 3, 1981
- Longyear Company
- Ronald B. Anderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Knuckle joint spearhead core drilling apparatus
- Patent number 4,281,725
- Issue date Aug 4, 1981
- Longyear Company
- Terry M. Runk
- E21 - EARTH DRILLING MINING
Information Patent Grant
High-low speed rotary drive mechanism
- Patent number 4,266,444
- Issue date May 12, 1981
- Longyear Company
- Ronald B. Anderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Basket type core retainer
- Patent number 3,952,817
- Issue date Apr 27, 1976
- Longyear Company
- John Forrest Anderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Dry hole wire core barrel apparatus
- Patent number 3,930,679
- Issue date Jan 6, 1976
- Longyear Company
- Ronald B. Anderson
- E21 - EARTH DRILLING MINING

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Trademarklast 30 trademarks

Information Trademark
74048598 - WTD
- Serial number 74048598
- Registration number 1670901
- Filing date Apr 13, 1990
- Longyear Company
- 42 - Scientific and technological services and research and design relating thereto
Information Trademark
72389597 - CQ
- Serial number 72389597
- Registration number 936578
- Filing date Apr 19, 1971
- LONGYEAR COMPANY
- 7 - Machines and machine tools
Information Trademark
72379666 - Q
- Serial number 72379666
- Registration number 924673
- Filing date Dec 28, 1970
- E. J. LONGYEAR COMPANY
- 7 - Machines and machine tools

LONGYEAR COMPANY

Organization

Patents Grantslast 30 patents

Overcenter toggle latch apparatus

Drilling latch apparatus

Rod handler apparatus

Built-in rack apparatus

Powered wrench apparatus

Cockable corebreaker apparatus

Positive latch wire line core barrel apparatus

Reverse circulation bit apparatus

Fast descent core barrel apparatus

Concrete sawing machine propulsion control apparatus

Rod break-out and make-up tool

Pivoting foot clamp and mounting frame

Knuckle joint spearhead core drilling apparatus

High-low speed rotary drive mechanism

Basket type core retainer

Dry hole wire core barrel apparatus

Trademarklast 30 trademarks

74048598 - WTD

72389597 - CQ

72379666 - Q