ECC International Inc.
Patent Owner
Stats
- 8 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 13, 2004 most recent publication
Details
- 8 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 576 Total Citation Count
- Oct 10, 1989 Earliest Filing
- 30 Expired/Abandoned/Withdrawn Patents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
6068693 Method for separating mixture of finely divided minerals and product thereofJun 16, 97May 30, 00[B03B, C04B, C09C]
6063237 Treatment of solid containing material derived from effluent or waste from wastepaper treating processFeb 27, 97May 16, 00[D21C]
5332564 Process for production of rhombic shaped precipitated calcium carbonateJul 10, 92Jul 26, 94[C01F]
5261956 Method for improving the rheology of calcined kaolin clay productsOct 15, 92Nov 16, 93[C04B]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
6719881 Acid colloid in a microparticle system used in papermakingExpiredJul 05, 01Apr 13, 04[D21H, C02F]
6083317 Stabilized calcium carbonate composition using sodium silicate and one or more weak acids or alum and uses thereforExpiredNov 05, 96Jul 04, 00[C09C]
5913973 Method for producing high solids aqueous acid-resistant calcium carbonate suspensions and product thereofExpiredJul 08, 97Jun 22, 99[C09C]
5856397 Dry grinding aid for dry milling a calcined kaolin clay and a related methodExpiredNov 12, 96Jan 05, 99[C08K]
5744530 Granular calcium carbonate for use as a direct additive for thermoplasticsExpiredApr 25, 96Apr 28, 98[C08K]
5711799 Acid tolerant calcium carbonate composition and uses thereforExpiredMar 13, 96Jan 27, 98[C09C]
5647902 Stabilized calcium carbonate composition using sodium carbonate and mixtures of acids and uses thereforExpiredOct 20, 95Jul 15, 97[C09C, D21H]
5599388 Acid resistant calcium carbonate composition containing an aluminum salt, uses therefor and processes for its productionExpiredAug 24, 95Feb 04, 97[C09C]
5593488 Acid resistant calcium carbonate composition and uses thereforExpiredAug 24, 95Jan 14, 97[C09C]
5593489 Acid resistant carbonate composition containing an aluminum or magnesium hydroxide methods of preparation and uses thereforExpiredOct 20, 95Jan 14, 97[C09C]
5584923 Surface modified calcium carbonate composition and uses thereforExpiredApr 01, 96Dec 17, 96[C09C]
5531821 Surface modified calcium carbonate composition and uses thereforExpiredAug 24, 95Jul 02, 96[C09C]
5522924 Method for producing high brightness low abrasion calcined kaolin pigmentExpiredMar 17, 95Jun 04, 96[C04B]
5458680 Method of producing aggregated composite pigments using organic silicon compoundsExpiredMar 25, 94Oct 17, 95[C09C, C08K]
5332493 Method for improving rheological properties of kaolin claysExpiredApr 28, 92Jul 26, 94[B03C, B03B]
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