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.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →