Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10392304 | Cement grinding additive for enabling PVC equipment use | Josephine H. Cheung | 2019-08-27 |
| 9328021 | Biomass derived grinding aids | Charlotte Porteneuve, Gerard Blond | 2016-05-03 |
| 8979998 | Biomass-derived grinding aids | Charlotte Porteneuve, Gerard Blond | 2015-03-17 |
| 8758504 | Dilution-stable cement grinding additive composition | Josephine H. Cheung | 2014-06-24 |
| 8097666 | Cement additive for stucco applications | Michael Macklin, Mark A. Franciosi, Byong-Wa Chun | 2012-01-17 |
| 7927418 | Coordinated metal compounds for reducing chromium | Neal S. Berke, Vijay Gupta, Charles R. Cornman, Antonio J. Aldykiewicz, Jr., Urszula B Latosiewicz +2 more | 2011-04-19 |
| 7922811 | Biomass-derived grinding aids | Charlotte Porteneuve, Gerard Blond | 2011-04-12 |
| 7232483 | Cement composition having chromium reducer | Charles R. Cornman, Vijay Gupta, Byong-Wa Chun | 2007-06-19 |
| 7160384 | Amine-containing cement processing additives | — | 2007-01-09 |
| 7128782 | Sulfate dispersion chromate reducer | Charles R. Cornman, David Geary, Vijay Gupta, Byong-Wa Chun | 2006-10-31 |
| 7087110 | Liquid additive for intergrinding cement | Charles R. Cornman, Vijay Gupta, Byong-Wa Chun | 2006-08-08 |
| 6872247 | Amine-based, hexavalent chromium reducing agents for cement | Charles Cornman, Felek Jachimowicz | 2005-03-29 |
| 6800129 | High solids pumpable cement additives | David F. Myers, Anandakumar Ranganathan | 2004-10-05 |
| 6670415 | Admixture for optimizing addition of EO/PO plasticizers | Hideo Koyata, Kevin J. Folliard, Chia-Chih Ou, Felek Jachimowicz, Byong-Wa Chun +2 more | 2003-12-30 |
| 6641661 | High early strength cement and additives and methods for making the same | Josephine H. Cheung, Walter M. Freitas | 2003-11-04 |
| 6451880 | Workability and board life in masonry mortar and method for obtaining same | — | 2002-09-17 |
| 6352952 | Admixture and method for optimizing addition of EO/PO superplasticizer to concrete containing smectite clay-containing aggregates | Hideo Koyata, Kevin J. Folliard, Chia-Chih Ou, Felek Jachimowicz, Byong-Wa Chun +2 more | 2002-03-05 |
| 5840114 | High early-strength-enhancing admixture for precast hydraulic cement and compositions containing same | Ara A. Jeknavorian, Ahmad Arfaei, Neal S. Berke, David C. Darwin, Ellis Gartner +2 more | 1998-11-24 |
| 5641352 | Nitrogenous strength enhancers for portland cement | Ara A. Jeknavorian | 1997-06-24 |
| 5531825 | Hydraulic cement set accelerators based on nitroalcohols | Ellis Gartner, Joseph A. Cogliano, Ahmad Arfaei, Paul Scheiner, Heyman C. Duecker | 1996-07-02 |
| 5211751 | Hydraulic cement set-accelerating admixtures incorporating amino acid derivatives | Ahmad Arfaei, Ara A. Jeknavorian | 1993-05-18 |