Andrew D. Murdock

Person

Stroud, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Cutting structure for earth boring drill bits
- Patent number 6,484,822
- Issue date Nov 26, 2002
- Camco International (UK) Limited
- Dean Watson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of determining characteristics of a rotary drag-type drill bit
- Patent number 6,164,390
- Issue date Dec 26, 2000
- Camco International (UK) Limited
- Andrew Murdock
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of determining characteristics of a rotary drag-type drill bit
- Patent number 6,151,960
- Issue date Nov 28, 2000
- Camco International (UK) Limited
- Malcolm Roy Taylor
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drill bit having moveable formation-engaging members
- Patent number 6,142,250
- Issue date Nov 7, 2000
- Camco International (UK) Limited
- Nigel Dennis Griffin
- E21 - EARTH DRILLING MINING
Information Patent Grant
Torque transmitting device for rotary drill bits
- Patent number 6,098,726
- Issue date Aug 8, 2000
- Camco International (UK) Limited
- Malcolm Roy Taylor
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drill bits
- Patent number 6,089,336
- Issue date Jul 18, 2000
- Camco International (UK) Limited
- Alex Nexton
- E21 - EARTH DRILLING MINING
Information Patent Grant
Matrix hard facing by lost wax process
- Patent number 5,944,128
- Issue date Aug 31, 1999
- Camco International (UK) Limited
- David Truax
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Rotary drill bit with hardfaced fluid passages and method of manufa...
- Patent number 5,829,539
- Issue date Nov 3, 1998
- Camco Drilling Group Limited
- Alex Newton
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drill bits
- Patent number 5,819,860
- Issue date Oct 13, 1998
- Camco International Inc.
- Alex Newton
- E21 - EARTH DRILLING MINING
Information Patent Grant
In or relating to rotary drill bits
- Patent number 5,732,783
- Issue date Mar 31, 1998
- Camco Drilling Group Limited of Hycalog
- David Truax
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Rotary drill bit having a non-rotating gauge section
- Patent number 5,697,461
- Issue date Dec 16, 1997
- Camco Drilling Group Ltd. of Hycalog
- Alex Newton
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drill bits
- Patent number 5,671,818
- Issue date Sep 30, 1997
- Camco Drilling Group Limited
- Alex Newton
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drill bits
- Patent number 5,651,421
- Issue date Jul 29, 1997
- Camco Drilling Group Limited
- Alex Newton
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drill bits
- Patent number 5,649,604
- Issue date Jul 22, 1997
- Camco Drilling Group Limited
- John M. Fuller
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drilling tools
- Patent number 5,531,281
- Issue date Jul 2, 1996
- Camco Drilling Group Ltd.
- Andrew D. Murdock
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drill bits
- Patent number 5,417,296
- Issue date May 23, 1995
- Camco Drilling Group Limited
- Andrew D. Murdock
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Cutting structure for earth boring drill bits
- Publication number 20020100618
- Publication date Aug 1, 2002
- Dean Watson
- E21 - EARTH DRILLING MINING
Information Patent Application
Rotary drag-type drill bits and methods of designing such bits
- Publication number 20010020551
- Publication date Sep 13, 2001
- Malcolm Taylor
- E21 - EARTH DRILLING MINING

Andrew D. Murdock

Person

Patents Grantslast 30 patents

Cutting structure for earth boring drill bits

Method of determining characteristics of a rotary drag-type drill bit

Method of determining characteristics of a rotary drag-type drill bit

Rotary drill bit having moveable formation-engaging members

Torque transmitting device for rotary drill bits

Rotary drill bits

Matrix hard facing by lost wax process

Rotary drill bit with hardfaced fluid passages and method of manufa...

Rotary drill bits

In or relating to rotary drill bits

Rotary drill bit having a non-rotating gauge section

Rotary drill bits

Rotary drill bits

Rotary drill bits

Rotary drilling tools

Rotary drill bits

Patents Applicationslast 30 patents

Cutting structure for earth boring drill bits

Rotary drag-type drill bits and methods of designing such bits