Josef Siekmeyer

This inventor holds 3 USPTO granted patents, plus 1 CIPO patent and 1 EPO patent. Top assignees: Mannesmann Aktiengesellschaft, Mannesmann Aktiengellschaft. Active years: 1990-1995.

USPTO Granted Patents = 3

% Patents Active = 100.0

CIPO Patents = 1

EPO Patents = 1

Average Co-Inventor Count = 3.3

ph-index = 3

Forward Citations = 79(Granted Patents)

Company Filing History:

2 out of 1,150

Mannesmann Aktiengesellschaft

patents

1 out of 1

Mannesmann Aktiengellschaft

patent

Years Active: 1990-1995

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3 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5452545 - Impact support for a door of a motor vehicle (1995-09-26),

2. 5048871 - Screwed pipe joint (1991-09-17),

3. 4955644 - Drill pipe coupling (1990-09-11),

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1 patent (CIPO):

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1 patent (EPO):

Please report any incorrect information to [email protected]