Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12070732 | Highly effective functional additive products | Fangfu Zhang | 2024-08-27 |
| 11992822 | Thermally activated bleaching clay product for oil bleaching | Bo Wang, Dennis Parker | 2024-05-28 |
| 11633713 | Ultra-high performance and high purify biogenic silica filtration media | George A. Nyamekye | 2023-04-25 |
| 11565940 | White functional additives derived from filtration spent cake containing diatomite | Peter E. Lenz, Andrew R. Welford, George A. Nyamekye, Kara Linn Evanoff | 2023-01-31 |
| 11511220 | Ultra-high purity, ultra-high performance diatomite filtration media | George A. Nyamekye, Peter E. Lenz, Qun Wang | 2022-11-29 |
| 11243177 | Opaline flux-calcined diatomite products | Peter E. Lenz, George A. Nyamekye, Bradley Scott Humphreys, Qun Wang | 2022-02-08 |
| 10908102 | Methods of determining the mineralogy of calcined and flux-calcined diatomite | Peter E. Lenz, George A. Nyamekye, Bradley Scott Humphreys, Qun Wang | 2021-02-02 |
| 10440934 | Low density compositions with synergistic absorbance properties | Chongjun Jiang, Pragati Galhotra, Wilson Kamau Wanene, Sean Spencer Crow, Vishal Gupta +1 more | 2019-10-15 |
| 10391433 | Opaline biogenic silica/expanded perlite composite products | Qun Wang, Peter E. Lenz | 2019-08-27 |
| 6712974 | Filterable composite adsorbents | Timothy R. Smith, Jerome C. Shiuh, John Roulston | 2004-03-30 |
| 6712898 | Perlite products with controlled particle size distribution | Bo Wang, Christopher Simon Hayward, John Roulston | 2004-03-30 |
| 6653255 | Highly purified biogenic silica product | Jerome C. Shiuh, Timothy R. Smith, George A. Nyamekye, Jeffrey D. Taniguchi, Qun Wang | 2003-11-25 |
| 6524489 | Advanced composite media | Timothy R. Smith, Jerome C. Shiuh, John Roulston | 2003-02-25 |
| 6464770 | Perlite products with controlled particle size distribution | Bo Wang, Christopher Simon Hayward, John Roulston | 2002-10-15 |
| 6140040 | Method of mechanically separating microparticles suspended in fluids using particulate media | Timothy R. Smith, Jerome C. Shiuh, John Roulston, Staci M. Richard, Shashi B. Dave +1 more | 2000-10-31 |
| 5908561 | Purified natural glass product | Qun Wang | 1999-06-01 |
| 5776353 | Advanced composite filtration media | Timothy R. Smith, Jerome C. Shiuh, John Roulston | 1998-07-07 |
| 5656568 | Highly purified biogenic silica product | Jerome C. Shiuh, Timothy R. Smith, George A. Nyamekye, Jeffrey D. Taniguchi, Qun Wang | 1997-08-12 |