P

Inventor

PRUETT ROBERT J

US23 patents
⚠️ This page may combine multiple inventors who share the name “PRUETT ROBERT J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IMERYS PIGMENTS INC

16 patents
US6402826B1Jun 11, 2002

Kaolin clay pigment for paper coating and method for producing same

IMERYS PIGMENTS INC63 citations94
US7122080B2Oct 17, 2006

Integrated process for simultaneous beneficiation, leaching, and dewatering of kaolin clay suspension

IMERYS PIGMENTS INC20 citations92
US7208039B2Apr 24, 2007

Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness

IMERYS PIGMENTS INC31 citations91
US6564199B1May 13, 2003

Kaolin clay pigments, their preparation and use

IMERYS PIGMENTS INC49 citations91
US6468343B1Oct 22, 2002

Engineered kaolin pigment composition for paper coating

IMERYS PIGMENTS INC22 citations90
US6149723ANov 21, 2000

Engineered kaolin pigment composition for paper coating

IMERYS PIGMENTS INC39 citations90
US6514333B1Feb 4, 2003

Preparation and use of high brightness kaolin pigments

IMERYS PIGMENTS INC14 citations80
US7226005B2Jun 5, 2007

Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness

IMERYS PIGMENTS INC7 citations72
US7214264B2May 8, 2007

Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness

IMERYS PIGMENTS INC5 citations72
US8016936B2Sep 13, 2011

Methods of calcining particulate material

IMERYS PIGMENTS INC2 citations60
US7806978B2Oct 5, 2010

Fine platy kaolin composition

IMERYS PIGMENTS INC4 citations60
US7648032B2Jan 19, 2010

Effective reductive bleaching of mineral slurries

IMERYS PIGMENTS INC2 citations57
US7780779B2Aug 24, 2010

Method for separating mixture of finely divided minerals

IMERYS PIGMENTS INC1 citations45
US9903072B2Feb 27, 2018

Compositions comprising kaolin treated with a styrene-based polymer and related methods

IMERYS PIGMENTS INC0 citations44
US9982324B2May 29, 2018

Rare earth element compositions obtained from particulate material comprising kaolin and methods for obtaining such compositions

IMERYS PIGMENTS INC0 citations43
US7727324B2Jun 1, 2010

Compositions comprising kaolin having nanosize dimensions

IMERYS PIGMENTS INC0 citations42

PRUETT ROBERT J

3 patents

ECC INT INC

1 patent

GAY ERNEST

1 patent

YUAN JUN

1 patent

IMERYS OILFIELD MINERALS INC

1 patent