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AMERICAN COLLOID CO

Overview
  • Total Patents
    372
About

AMERICAN COLLOID CO has a total of 372 patent applications. Its first patent ever was published in 1931. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets machines, civil engineering and basic materials chemistry are INTUMEX BRANDSCHUTZPRODUKTE AG, MCGROARTY BRYAN M and CLEM ENVIRONMENTAL CORP.

Patent filings per year

Chart showing AMERICAN COLLOID COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Alexander William 65
#2 Hughes John 54
#3 Clem Arthur G 35
#4 White Alec W 24
#5 Harriett Todd D 20
#6 Anderson Mark 19
#7 Regan Barbara R 14
#8 Teppo Maynard 11
#9 Maul Peter L 10
#10 Gentry Everett G 8

Latest patents

Publication Filing date Title
US2004244943A1 Acid activated clay for use in foundry sand
AU1426899A Extruded smectite clay clumping animal litter having improved clump strength
GB9510900D0 Method of increasing the size and absorbtion under load of super absorbent polymers by impregnation with a solution of cross-linking agent
US5486569A Method of increasing the size and/or absorption under load of superabsorbent polymers by surface cross-linking and subsequent agglomeration of undersized particcles
GB9413604D0 Method of increasing the size and absorption under load of super-absorbent polymers by impregnation with a solution of cross-linking agent
GB9413605D0 Method of increasing the size and absorption under load of super-absorbent fine particles by impregnation with an aqueous acrylic monomer solution
GB9413619D0 Method of increasing the size and/or absorption under load of super-absorbent polymers by surface cross-linking
US5452684A Method of agglomerating a smectite clay litter
CA2113409A1 Process for regenerating, and optionally carbonizing, spent acid-activated smectite clays
CA2113151A1 Multi-layer waterproofing articles including a layer of water-soluble polymer and method
US5379948A Method for milling clay without substantial generation of powder
US5407879A Method of improving the contaminant resistance of a smectite clay by rewetting and impregnating the clay with a water-soluble polymer, and redrying the polymer-impregnated clay
AU4135093A Water barrier formed from a clay-fiber mat
US5356678A Pouch for absorbing fluid
US5358915A Process for regenerating spent acid-activated bentonite clays and smectite catalysts
US5330946A Process of acid binding fine smectite clay particles into granules
US5339590A Trapezium-shaped aqueously-swelling concrete joint-sealing method
US5389166A Water barrier formed from a clay-fiber mat
US5215143A Non-porous carbon molding (foundry) sand and method of casting
US5317990A Animal dross absorbent and method