Gerhard Krug

This inventor holds 5 USPTO granted patents. Top assignees: Mannesmann Aktiengesellschaft, Vallourec Mannesmann Oil & Gas Germany Gmbh. Active years: 1979-2003.

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 4

Forward Citations = 156(Granted Patents)

Location History:

Dusseldorf, DE (1979)
Duisburg, DE (1991 - 2003)

Company Filing History:

4 out of 1,150

Mannesmann Aktiengesellschaft

patents

1 out of 1

Vallourec Mannesmann Oil & Gas Germany Gmbh

patent

Years Active: 1979-2003

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6585299 - Pipe connector (2003-07-01),

2. 6513840 - Drill rod coupling (2003-02-04),

3. 6511102 - Pipe connector (2003-01-28),

4. 5048871 - Screwed pipe joint (1991-09-17),

5. 4153283 - Casing joint (1979-05-08),

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