GRACE DEARBORN INC.
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Feb 14, 1995 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 168 Total Citation Count
- Nov 02, 1979 Earliest Filing
- 8 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Recent Publications
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Recent Patents
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Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5314660 Use of cationic alkyl-phosphonium salts as corrosion inhibitors in open recirculating systemsExpiredJan 28, 93May 24, 94[C23F]
4995944 Controlling deposits on paper machine felts using cationic polymer and cationic surfactant mixtureExpiredAug 09, 90Feb 26, 91[D21H, D21F]
4781839 Method for flocculating and removing solids suspended in waterExpiredOct 08, 87Nov 01, 88[C02F]
4734216 Composition and method for flocculating and removing solids suspended in waterExpiredAug 19, 86Mar 29, 88[C02F]
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