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Wedemark, Germany

Bernd G Pietras

USPTO Granted Patents = 5

Average Co-Inventor Count = 2.6

ph-index = 5

Forward Citations = 288(Granted Patents)

Location History:

Wedewark, DE (2002)
Wedemark, DE (1988 - 2006)

Company Filing History:

Weatherford/lamb, Inc.

Weatherford Oil Tool Gmbh

Years Active: 1988-2006

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7028787 - Tong for wellbore operations (2006-04-18),

2. 6668684 - Tong for wellbore operations (2003-12-30),

3. 6412554 - Wellbore circulation system (2002-07-02),

4. 6082224 - Power tong (2000-07-04),

5. 4739681 - Machine for making up and breaking out pipe joints (1988-04-26),

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