RICHWOOD INDUSTRIES, INC.
Patent Owner
Stats
- 22 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jun 06, 2017 most recent publication
Details
- 22 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 645 Total Citation Count
- Nov 10, 1977 Earliest Filing
- 9 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Top Patents (by citation)
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Recent Publications
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Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5140086 Isocyanate modified cellulose products and method for their manufactureExpiredNov 27, 90Aug 18, 92[C08H, C08G, B32B]
5090870 Method for fluent mass surface texturing a turbine vaneExpiredOct 20, 89Feb 25, 92[B24B, F01D]
4696388 Conveyor belt scraper blade assembly with contoured surfaceExpiredDec 03, 85Sep 29, 87[B65G]
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