Thomas W Pfeffer

This inventor holds 3 USPTO granted patents. Top assignees: Gm Global Technolgoy Operations, Inc., Siemens Automotive Corporation, Siemens Vdo Automotive Corporation. Active years: 2002-2007.

USPTO Granted Patents = 3

% Patents Active = 100.0

Average Co-Inventor Count = 5.6

ph-index = 3

Forward Citations = 65(Granted Patents)

Location History:

Rochester, MI (US) (2002 - 2003)
Messel, DE (2007)

Company Filing History:

1 out of 31,820

Gm Global Technolgoy Operations, Inc.

patents

1 out of 541

Siemens Automotive Corporation

patents

1 out of 583

Siemens Vdo Automotive Corporation

patents

Years Active: 2002-2007

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3 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7222006 - Method for determination of pre-authorization engine operation time for a vehicle theft deterrent system (2007-05-22),

2. 6653747 - Electronic key system including ignition and transmission control (2003-11-25),

3. 6386447 - Smart card with card in vehicle warning (2002-05-14),

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