Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8413420 | Apparatus and methods for carbon dioxide capture and conversion | — | 2013-04-09 |
| 7767150 | Aerosol collection apparatus and methods | Dennis Martell, Isaac Ray | 2010-08-03 |
| 7472612 | Aerosol collection apparatus and method | Dennis Martell | 2009-01-06 |
| 6762060 | Apparatus and methods for monitoring the concentrations of hazardous airborne substances, especially lead | — | 2004-07-13 |
| 6642057 | Methods for the detection of harmful substances or traces thereof | — | 2003-11-04 |
| 6565811 | Apparatus for the detection of harmful substances or traces thereof | — | 2003-05-20 |
| 6235173 | Humidity-resistant ambient-temperature solid-electrolyte amperometric sensing apparatus and methods | — | 2001-05-22 |
| 6087183 | High-throughput liquid-absorption air-sampling apparatus and methods | — | 2000-07-11 |
| 5328851 | High-throughput liquid-absorption preconcentrator sampling methods | — | 1994-07-12 |
| 5322611 | Humidity-resistant ambient-temperature solid-electrolyte amperometric sensing apparatus | — | 1994-06-21 |
| 5286465 | Hydrometallurgical process for recovering iron sulfate and zinc sulfate from baghouse dust | Daniel B. Lawson | 1994-02-15 |
| 5173264 | High throughput liquid absorption preconcentrator sampling instrument | Ralph M. Bozen | 1992-12-22 |
| 5106756 | Method and system for gathering a library of response patterns for sensor arrays | — | 1992-04-21 |
| 5055266 | Method for detecting toxic gases | Joseph R. Stetter, Melvin Findlay | 1991-10-08 |
| 4977095 | Liquid-absorption preconcentrator sampling instrument | — | 1990-12-11 |
| 4942135 | Method for preconcentrating a sample for subsequent analysis | — | 1990-07-17 |
| 4912051 | Permeation absorption sampler with multiple detection | — | 1990-03-27 |
| 4888295 | Portable system and method combining chromatography and array of electrochemical sensors | Joseph R. Stetter | 1989-12-19 |
| 4829008 | Analytical instrument with apparatus for sample concentrating | — | 1989-05-09 |
| 4814240 | Metal-consuming power generation methods | — | 1989-03-21 |
| 4670405 | Sensor array for toxic gas detection | Joseph R. Stetter, William R. Penrose | 1987-06-02 |
| 4591414 | Method of determining methane and electrochemical sensor therefor | Takaaki Otagawa, Joseph R. Stetter | 1986-05-27 |
| 4554222 | Metal-consuming power generation apparatus and methods | — | 1985-11-19 |
| 4499734 | Power generation apparatus and methods | — | 1985-02-19 |
| 4416954 | Power generation apparatus | — | 1983-11-22 |