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Patent applications and USPTO patent grants for Spence; Douglas.The latest application filed is for "propellant isolation barrier".
Patent | Date |
---|---|
Propellant Isolation Barrier App 20170369753 - Demmons; Nathaniel ;   et al. | 2017-12-28 |
Propellant Isolation Barrier App 20160333865 - Demmons; Nathaniel ;   et al. | 2016-11-17 |
Propellant Isolation Barrier App 20160168437 - Demmons; Nathaniel ;   et al. | 2016-06-16 |
Electrospray source Grant 8,448,419 - Demmons , et al. May 28, 2 | 2013-05-28 |
Electrospray device Grant 7,932,492 - Demmons , et al. April 26, 2 | 2011-04-26 |
Electrospray device App 20100025575 - Demmons; Nathaniel ;   et al. | 2010-02-04 |
Electrospray source App 20090113872 - Demmons; Nathaniel ;   et al. | 2009-05-07 |
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