Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11085861 | Apparatus for real-time size-distributed measurement of aerosol mass concentration | Modi Chen, Lin Li, Virgil A. Marple, Amir A. Naqwi, Francisco J. Romay +1 more | 2021-08-10 |
| 7325441 | Personal mask test system | Benjamin Y. H. Liu | 2008-02-05 |
| 6723568 | Method and apparatus for cascade impactor testing of inhalable drug therapies recovery for chemical analysis | Benjamin Y. H. Liu, Virgil A. Marple | 2004-04-20 |
| 6647758 | Method and apparatus for verifying integrity of cascade impactors | Virgil A. Marple | 2003-11-18 |
| 6595368 | Pre-separator for inlets of cascade impactors | Virgil A. Marple | 2003-07-22 |
| 6561045 | Sampler for eliminating particle-related artifacts for flue gas measurement | Benjamin Y. H. Liu, Virgil A. Marple, Francisco J. Romay | 2003-05-13 |
| 6543301 | Impactor nozzle plate | Virgil A. Marple | 2003-04-08 |
| 6520673 | Mixing devices for sample recovery from a USP induction port or a pre-separator | Virgil A. Marple | 2003-02-18 |
| 6453758 | Efficient high-productivity cascade impactors | Virgil A. Marple, Benjamin Y. H. Liu | 2002-09-24 |
| 5936106 | Process with porous means to control reaction rate and heat | William J. Asher, Jerry L. Jones, Douglas Gottschlich | 1999-08-10 |
| 5597044 | Method for dispersing an atomized liquid stream | James R. Butz | 1997-01-28 |
| 5583240 | Exothermic process with porous means to control reaction rate and exothermic heat | William J. Asher, Jerry L. Jones, Douglas Gottschlich | 1996-12-10 |
| 5495893 | Apparatus and method to control deflagration of gases | James R. Butz | 1996-03-05 |
| 5399188 | Organic emissions elimination apparatus and process for same | — | 1995-03-21 |
| 5322913 | Polysilazanes and related compositions, processes and uses | Yigal Blum, Richard M. Laine, Kenneth B. Schwartz, Robert M. Platz, David J. Rowcliffe +2 more | 1994-06-21 |
| 4605475 | Gas separation process | Richard M. Laine | 1986-08-12 |