Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9555368 | Chemically-enhanced sorbent activation process and method of using same | Ramsay Chang, Yongqi Lu | 2017-01-31 |
| 9302218 | Chemically-enhanced sorbent activation process and methods for using same | Ramsay Chang, Yongqi Lu | 2016-04-05 |
| 8999278 | Method and apparatus for on-site production of lime and sorbents for use in removal of gaseous pollutants | Ramsay Chang, Yongqi Lu | 2015-04-07 |
| 8062408 | Integrated vacuum absorption steam cycle gas separation | Shiaguo Chen, Yonggi Lu | 2011-11-22 |
| 7223602 | Continuous tracer generation method | Dennis Coleman, Rodney R. Ruch, Shiaoguo Chen | 2007-05-29 |
| 7066972 | Continuous tracer generation apparatus | Dennis Coleman, Rodney R. Ruch, Shiaoguo Chen | 2006-06-27 |
| 6793699 | Continuous tracer generation apparatus | Dennis Coleman, Rodney R. Ruch, Shiaoguo Chen | 2004-09-21 |
| 6558454 | Method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents | Ramsay Chang, Sharon Sjostrom | 2003-05-06 |
| 6451094 | Apparatus and method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents | Ramsay Chang, Shiaoguo Chen | 2002-09-17 |
| 5854173 | Flake shaped sorbent particle for removing vapor phase contaminants from a gas stream and method for manufacturing same | Ramsay Chang | 1998-12-29 |
| 5492685 | High surface area hydrated lime and method of removing SO.sub.2 from a gas stream | David L. Moran | 1996-02-20 |
| 5223239 | Method of preparing hydrated lime | David L. Moran | 1993-06-29 |