Growing community of inventors

Graz, Austria

Oskar Kehrer

Average Co-Inventor Count = 1.00

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 32

Oskar KehrerJosef Weilharter (0 patent)Oskar KehrerOskar Kehrer (2 patents)Josef WeilharterJosef Weilharter (0 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Steyr-daimler-puch Fahrzeugtechnik Ag & Co. Kg. (1 from 14 patents)

2. Magna Steyr Powertrain Ag & Co. Kg (1 from 5 patents)

3. Tdk Electronics Ag (219 patents)

4. Magna Drivetrain Ag & Co Kg (12 patents)


2 patents:

1. 7137897 - Shaft comprising a part connected thereto by welding

2. 6589671 - Method for joining a cast part and a case-hardened steel part and component manufactured according to said method

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12/17/2025
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