Birkhahn; Ronald H.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Birkhahn; Ronald H..The latest application filed is for "group iii-v semiconductor device with strain-relieving layers".

Company Profile

0.4.4

Birkhahn; Ronald H. - Dublin CA
Birkhahn; Ronald H. - Minneapolis MN
Birkhahn, Ronald H. - Cincinnati OH
Birkhahn; Ronald H. - Toledo OH

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Group III-V semiconductor device with strain-relieving layers Grant 9,741,841 - Nelson , et al. August 22, 2	2017-08-22
Group III-V Semiconductor Device with Strain-Relieving Layers App 20160233327 - Nelson; Scott ; et al.	2016-08-11
Rare earth enhanced high electron mobility transistor and method for fabricating same Grant 8,269,253 - Birkhahn September 18, 2	2012-09-18
Stress modulated group III-V semiconductor device and related method App 20120153351 - Chandolu; Anilkumar ; et al.	2012-06-21
Rare earth enhanced high electron mobility transistor and method for fabricating same App 20100308375 - Birkhahn; Ronald H.	2010-12-09
Visible light emitting device formed from wide band gap semiconductor doped with a rare earth element App 20010015469 - Birkhahn, Ronald H. ; et al.	2001-08-23
Visible light emitting device formed from wide band gap semiconductor doped with a rare earth element Grant 6,255,669 - Birkhahn , et al. July 3, 2	2001-07-03
Nutritive water soluble glycerol esters of hydroxy butyric acid Grant 5,693,850 - Birkhahn , et al. December 2, 1	1997-12-02

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