Assignee
AMERICAN COLLOID CO
119 granted patents·5,237 citations·filing 1974–2003
Top patents by PatentIndex Score
119 records- 0198US4836940AComposition and method of controlling lost circulation from wellboresAMERICAN COLLOID CO·Filed 1987·Granted Jun 6, 1989·267 cites·6 claims
- 0297US4985518AProcess for preparing water-absorbing resinsAMERICAN COLLOID CO·Filed 1989·Granted Jan 15, 1991·215 cites·29 claims
- 0396US4824901ASurface treated absorbent polymersAMERICAN COLLOID CO·Filed 1988·Granted Apr 25, 1989·167 cites·32 claims
- 0496US4810573ASelf-healing bentonite sheet material composite articleAMERICAN COLLOID CO·Filed 1987·Granted Mar 7, 1989·116 cites·4 claims
- 0596US4525527AProduction process for highly water absorbable polymerAMERICAN COLLOID CO·Filed 1983·Granted Jun 25, 1985·101 cites·27 claims
- 0695US5503111AAnimal dross absorbent and methodAMERICAN COLLOID CO·Filed 1994·Granted Apr 2, 1996·73 cites·31 claims
- 0795US4733989ASelf-healing bentonite sheet material composite drainage structureAMERICAN COLLOID CO·Filed 1986·Granted Mar 29, 1988·84 cites·10 claims
- 0894US5386803AAnimal dross absorbent and methodAMERICAN COLLOID CO·Filed 1989·Granted Feb 7, 1995·65 cites·26 claims
- 0994US5237945AWater barrier formed from a clay-fiber matAMERICAN COLLOID CO·Filed 1991·Granted Aug 24, 1993·109 cites·45 claims
- 1093US5452684AMethod of agglomerating a smectite clay litterAMERICAN COLLOID CO·Filed 1994·Granted Sep 26, 1995·72 cites·18 claims
- 1193US5389166AWater barrier formed from a clay-fiber matAMERICAN COLLOID CO·Filed 1992·Granted Feb 14, 1995·90 cites·41 claims
- 1293US5000115AAnimal dross absorbent and methodAMERICAN COLLOID CO·Filed 1989·Granted Mar 19, 1991·64 cites·27 claims
- 1393US4936386AMethod for sealing well casings in the earthAMERICAN COLLOID CO·Filed 1989·Granted Jun 26, 1990·194 cites·31 claims
- 1493US4755562ASurface treated absorbent polymersAMERICAN COLLOID CO·Filed 1986·Granted Jul 5, 1988·80 cites·33 claims
- 1592US4919989AArticle for sealing well castings in the earthAMERICAN COLLOID CO·Filed 1989·Granted Apr 24, 1990·210 cites·22 claims
- 1692US4703067AProcess for preparing dry solid water absorbing polyacrylate resinAMERICAN COLLOID CO·Filed 1987·Granted Oct 27, 1987·78 cites·6 claims
- 1792US4613542AMethod of impregnating a water-penetrable article with a swell-inhibited water swellable clay slurryAMERICAN COLLOID CO·Filed 1985·Granted Sep 23, 1986·62 cites·22 claims
- 1891US5346566AWater barrier of water-swellable clay or other abrasive material sandwiched between interconnected layers of flexible fabric sewn or needled together using a lubricant and/or a liquid adhesiveAMERICAN COLLOID CO·Filed 1992·Granted Sep 13, 1994·88 cites·30 claims
- 1991US5129365AAnimal dross absorbent and methodAMERICAN COLLOID CO·Filed 1990·Granted Jul 14, 1992·64 cites·21 claims
- 2091US4552938AProcess for preparing dry solid water absorbing polyacrylate resinAMERICAN COLLOID CO·Filed 1982·Granted Nov 12, 1985·61 cites·10 claims
- 2191US4534926AUninhibited bentonite compositionAMERICAN COLLOID CO·Filed 1984·Granted Aug 13, 1985·54 cites·18 claims
- 2291US4048373AWater barrier panelAMERICAN COLLOID CO·Filed 1975·Granted Sep 13, 1977·51 cites·6 claims
- 2390US5034045ALiquid crop stimulantAMERICAN COLLOID CO·Filed 1990·Granted Jul 23, 1991·66 cites·22 claims
- 2490US4954562AWater absorbent resinsAMERICAN COLLOID CO·Filed 1989·Granted Sep 4, 1990·55 cites·44 claims
- 2590US4167398ACarbonaceous briquette and method for making sameAMERICAN COLLOID CO·Filed 1978·Granted Sep 11, 1979·47 cites·8 claims
- 2690US3986365ASoil sealing methodAMERICAN COLLOID CO·Filed 1976·Granted Oct 19, 1976·50 cites·1 claims
- 2789US5476142AFlexible contaminant-resistant grout composition and methodAMERICAN COLLOID CO·Filed 1994·Granted Dec 19, 1995·62 cites·27 claims
- 2889US5317990AAnimal dross absorbent and methodAMERICAN COLLOID CO·Filed 1992·Granted Jun 7, 1994·49 cites·11 claims
- 2989US4886550AFlexible grout composition and methodAMERICAN COLLOID CO·Filed 1988·Granted Dec 12, 1989·55 cites·18 claims
- 3089US4624982AMethod of temporarily inhibiting the swellability of water swellable clays and compositionsAMERICAN COLLOID CO·Filed 1985·Granted Nov 25, 1986·49 cites·17 claims
- 3189US4209568ABentonite-gelled oil waterproofing compositionAMERICAN COLLOID CO·Filed 1978·Granted Jun 24, 1980·42 cites·12 claims
- 3288US4514510AHydrogen enriched water swellable clay having reduced acid demand and stable at low pHAMERICAN COLLOID CO·Filed 1983·Granted Apr 30, 1985·61 cites·19 claims
- 3387US5221290ACharcoal briquettes bound with an organic binder and a water-swellable clay and methodAMERICAN COLLOID CO·Filed 1991·Granted Jun 22, 1993·96 cites·25 claims
- 3487US4378299ACable lubricating composition and methodAMERICAN COLLOID CO·Filed 1982·Granted Mar 29, 1983·33 cites·17 claims
- 3586US5174231AWater-barrier of water-swellable clay sandwiched between interconnected layers of flexible fabric needled together using a lubricantAMERICAN COLLOID CO·Filed 1990·Granted Dec 29, 1992·60 cites·42 claims
- 3686US5026416ALiquid crop stimulantAMERICAN COLLOID CO·Filed 1987·Granted Jun 25, 1991·60 cites·34 claims
- 3786US4820773AWater absorbent resins prepared by polymerization in the presence of styrene-maleic anhydride copolymersAMERICAN COLLOID CO·Filed 1987·Granted Apr 11, 1989·39 cites·41 claims
- 3886US4696698AFlexible grout composition and methodAMERICAN COLLOID CO·Filed 1985·Granted Sep 29, 1987·49 cites·22 claims
- 3986US4618631AProduction process for highly water absorbable polymerAMERICAN COLLOID CO·Filed 1986·Granted Oct 21, 1986·36 cites·3 claims
- 4083US4906276APlant transplant and plant preservation mediumAMERICAN COLLOID CO·Filed 1986·Granted Mar 6, 1990·28 cites·12 claims
- 4183US4677174AWater absorbent styrene-acrylic acid copolymersAMERICAN COLLOID CO·Filed 1986·Granted Jun 30, 1987·43 cites·16 claims
- 4282US4534925AUninhibited bentonite compositionAMERICAN COLLOID CO·Filed 1982·Granted Aug 13, 1985·37 cites·21 claims
- 4380US5346565AWater barrier of water-swellable clay sandwiched between interconnected layers of flexible fabric needled together using a lubricantAMERICAN COLLOID CO·Filed 1992·Granted Sep 13, 1994·41 cites·39 claims
- 4480US5112665AWater barrier of water-swellable clay sandwiched between interconnected layers of flexible fabricAMERICAN COLLOID CO·Filed 1991·Granted May 12, 1992·41 cites·4 claims
- 4580US4797158AFlexible grout composition and methodAMERICAN COLLOID CO·Filed 1987·Granted Jan 10, 1989·31 cites·30 claims
- 4680US4696699AFlexible grout composition and methodAMERICAN COLLOID CO·Filed 1986·Granted Sep 29, 1987·34 cites·23 claims
- 4780US4279547ABentonite-gelled oil waterproofing compositionAMERICAN COLLOID CO·Filed 1979·Granted Jul 21, 1981·31 cites·14 claims
- 4879US5379948AMethod for milling clay without substantial generation of powderAMERICAN COLLOID CO·Filed 1994·Granted Jan 10, 1995·30 cites·14 claims
- 4979US5173344AArticle and method for sealing seams between water barrier articlesAMERICAN COLLOID CO·Filed 1990·Granted Dec 22, 1992·44 cites·18 claims
- 5079US4656062ASelf-healing bentonite sheet material composite articleAMERICAN COLLOID CO·Filed 1984·Granted Apr 7, 1987·51 cites·18 claims
Showing the top 50 of 119 patent records by PatentIndex Score.
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