Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9268029 | Efficient method for radiochromic film dosimetry | David F. Lewis, Xiang Yu | 2016-02-23 |
| 8604415 | Radiation dosimetry method | David F. Lewis, Xiang Yu | 2013-12-10 |
| 7168256 | Apparatus and method for recovery and recycle of optical fiber coolant gas | Igor Shedletsky, Yaping Lu | 2007-01-30 |
| 6851316 | Apparatus and method for recovery and recycle of tracer gas from leak testing process with randomly varying demand | Igor Shedletsky | 2005-02-08 |
| 6701728 | Apparatus and method for recovery and recycle of optical fiber coolant gas | Igor Shedletsky, Yaping Lu | 2004-03-09 |
| 6382227 | Production of constant composition gas mixture streams | David William Birch, Shuen-Cheng Hwang, Lesli B. Cosey, Carl W. Schmidt, Robert F. Phillips +1 more | 2002-05-07 |
| 5992478 | Method and apparatus for filling containers with gas mixtures | Martin Bulow | 1999-11-30 |
| 5901758 | Method of filling gas containers | Shuen-Cheng Hwang, Ramachandran Krishnamurthy | 1999-05-11 |
| 5826632 | Dynamic gas cylinder filling process | Lesli B. Cosey | 1998-10-27 |
| 5452618 | Mechanism for oscillating a sample holder within a sample vessel | Martin Bulow | 1995-09-26 |