Helical Dynamics, Inc.
Patent Owner
Stats
- 5 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Sep 23, 1997 most recent publication
Details
- 5 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 247 Total Citation Count
- Nov 16, 1978 Earliest Filing
- 9 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
5634845 Method for sizing a source capture system for an air cleaning systemSep 29, 95Jun 03, 97[B08B]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5656049 Separator suspension system for a modular air handling systemExpiredDec 21, 95Aug 12, 97[B01D]
4382807 Apparatus for separating foreign matter from a gas with a heat exchangerExpiredAug 10, 81May 10, 83[B01D]
4364754 Apparatus for separating foreign matter from a gas with a heat exchangerExpiredApr 13, 81Dec 21, 82[B01D]
Top Inventors for This Owner
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