Heiderman; Douglas Charles
Patent Applications and Registrations
Patent applications and USPTO patent grants for Heiderman; Douglas Charles.The latest application filed is for "auto shutoff device".
- Heiderman; Douglas Charles - Akron NY US
| Patent | Date |
|---|---|
| Auto Shutoff Device App 20130146166 - Campeau; Serge ; et al. | 2013-06-13 |
| Fail-safe vacuum actuated valve for high pressure delivery systems Grant 7,708,028 - Brown , et al. May 4, 2 | 2010-05-04 |
| System and apparatus for producing primary standard gas mixtures Grant 7,390,346 - Malczewski , et al. June 24, 2 | 2008-06-24 |
| Fail-safe vacuum actuated valve for high pressure delivery systems App 20080135104 - Cooper; Scott Lawrence ; et al. | 2008-06-12 |
| Low release rate cylinder package App 20080000532 - Wagner; Matthew Lincoln ; et al. | 2008-01-03 |
| System and apparatus for producing primary standard gas mixtures App 20060254656 - Malczewski; Mark Leonard ; et al. | 2006-11-16 |
| Multiple regulator vacuum delivery valve assembly Grant 6,959,724 - Heiderman November 1, 2 | 2005-11-01 |
| Multiple dispensing check valve delivery system App 20040000339 - Heiderman, Douglas Charles | 2004-01-01 |
| Multiple regulator vacuum delivery valve assembly App 20040000338 - Heiderman, Douglas Charles | 2004-01-01 |
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