David McWilliams — 2 Patents at Chart

David McWilliams has been granted 2 US patents while listed as an inventor at Chart. The first was granted in 2004 and the most recent in July 2008. David McWilliams ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David McWilliams in Groton, MA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7399002	Cryogenic seal for vacuum-insulated pipe expansion bellows	Stuart Motew, Douglas A. Ducote, Jr., William Middleton, John W. Bonn	2008-07-15	$14,721,000
6719564	Space simulation chamber and method	Yatming R. Than	2004-04-13

David McWilliams — 2 Patents

Issued Patents All Time

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