David DeMuth — 7 Patents at Quallion

David DeMuth has been granted 7 US patents while listed as an inventor at Quallion. The first was granted in 1984 and the most recent in February 2012. David DeMuth ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list David DeMuth in Waltham, MA, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #	Title	Co-Inventors	Date
8115454	Battery with an integrated voltage converter having a bypass circuit	George Cintra, Kirakodu S. Nanjundaswamy, Alexander Kaplan, David C. Batson, Leslie J. Pinnell +3 more	2012-02-14
7951480	Separator bag for use in electrochemcial cell	David Skinlo, Hiroyuki Yumoto	2011-05-31
7932700	Battery with integrated voltage converter	George Cintra, Kirakodu S. Nanjundaswamy, Alexander Kaplan, David C. Batson, Leslie J. Pinnell +3 more	2011-04-26
7341802	Feedthrough assembly and method	Naoki Ota, Hiroshi Nakahara, M. Elizabeth Bush	2008-03-11
7003356	Battery terminal sealing and supporting device and method	Hisashi Tsukamoto, Mikito Nagata, Michael Bowers	2006-02-21
4891283	Insoluble mixed heavy metal polysulfide cathodes	William L. Bowden, Luverne H. Barnette	1990-01-02
4481267	Insoluble heavy metal polysulfide cathodes	William L. Bowden, Luverne H. Barnette	1984-11-06

David DeMuth — 7 Patents

Issued Patents All Time

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