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For the Inventor, By the Inventor

Ostfildern, Germany

Manfred Hartwig

This inventor holds 3 USPTO granted patents. Top assignee: Mannesmann Rexroth Corporation. Active years: 1987-1988.

USPTO Granted Patents = 3

% Patents Active = 100.0

Average Co-Inventor Count = 1.5

ph-index = 3

Forward Citations = 10(Granted Patents)


Company Filing History:

goldMedal3 out of 238 
 
Mannesmann Rexroth Corporation
 patents

Years Active: 1987-1988

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3 patents (USPTO):Explore Patents
1. 4722362 - Pilot operated 3/2 poppet valve (1988-02-02),
2. 4687177 - Device for adjusting the switching time of a valve member (1987-08-18),
3. 4682756 - Hydraulically operated self-closing two-way seat-type valve (1987-07-28),
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