JR

John Roulston

AM Advanced Minerals: 7 patents #2 of 16Top 15%
IM Imerys Filtration Minerals: 1 patents #6 of 15Top 40%
Overall (All Time): #651,983 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8410017 Filter aids made from low permeability diatomites George A. Nyamekye, Joseph Levay, John Edgar Menear 2013-04-02
7303600 Unexpanded perlite ore polishing composition and methods Dean A. Klein 2007-12-04
6712898 Perlite products with controlled particle size distribution Scott K. Palm, Bo Wang, Christopher Simon Hayward 2004-03-30
6712974 Filterable composite adsorbents Scott K. Palm, Timothy R. Smith, Jerome C. Shiuh 2004-03-30
6524489 Advanced composite media Scott K. Palm, Timothy R. Smith, Jerome C. Shiuh 2003-02-25
6464770 Perlite products with controlled particle size distribution Scott K. Palm, Bo Wang, Christopher Simon Hayward 2002-10-15
6140040 Method of mechanically separating microparticles suspended in fluids using particulate media Scott K. Palm, Timothy R. Smith, Jerome C. Shiuh, Staci M. Richard, Shashi B. Dave +1 more 2000-10-31
5776353 Advanced composite filtration media Scott K. Palm, Timothy R. Smith, Jerome C. Shiuh 1998-07-07