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Park Ridge, IL, United States of America

Douglas J Volden

USPTO Granted Patents = 6

EPO Patents = 1 (Patent Applications = 1)

Average Co-Inventor Count = 2.8

ph-index = 4

Forward Citations = 137(Granted Patents)

Company Filing History:

John Crane Inc.

Years Active: 1993-2024

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12181050 - Ring with recirculating grooves for dry gas seal (2024-12-31),

2. 7857319 - Mechanical seal with banded ring (2010-12-28),

3. 6210107 - Barrier seal systems (2001-04-03),

4. 5713576 - Gas lubricated barrier seal (1998-02-03),

5. 5375853 - Secondary containment seal (1994-12-27),

6. 5249812 - Barrier seal systems (1993-10-05),

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