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Weinheim, Germany

Helmut Holzer

USPTO Granted Patents = 10

Average Co-Inventor Count = 1.2

ph-index = 7

Forward Citations = 99(Granted Patents)

Location History:

Weinhem, DE (1985)
Weinheim, DE (1981 - 1988)

Company Filing History:

Firma Carl Freudenberg

Years Active: 1981-1988

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4750747 - Seal ring having lubricant pockets and a process of making a seal ring (1988-06-14),

2. 4595206 - Seal with inner and outer slidably contacting rings (1986-06-17),

3. 4591168 - Sealing ring having torsion ribs (1986-05-27),

4. 4522410 - Axle or shaft seal with overlapping ring extension members (1985-06-11),

5. 4522328 - Shaft seal (1985-06-11),

6. 4504068 - Shaft sealing ring (1985-03-12),

7. 4474379 - Centrifugally-operated radially-translatable seal ring (1984-10-02),

8. 4427205 - Radial shaft sealing ring (1984-01-24),

9. 4334687 - Shaft seal with multi-slitted sleeve (1982-06-15),

10. 4298203 - Two part shaft sealing ring (1981-11-03),

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