HELENA CHEMICAL COMPANY
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 02, 2013 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 47 Total Citation Count
- Sep 29, 1987 Earliest Filing
- 3 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Recent Patents
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Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5449394 Nonpolymeric condensed ammonia, urea, formaldehyde liquid fertilizerExpiredMar 25, 94Sep 12, 95[C05C]
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