David E. Roche — 3 Patents at Helix Technology

David E. Roche has been granted 3 US patents while listed as an inventor at Helix Technology. The first was granted in 1990 and the most recent in February 2000. David E. Roche ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David E. Roche in Nashua, NH, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6022195	Electronically controlled vacuum pump with control module	Peter W. Gaudet, Michael J. Eacobacci, Robert J. Lepofsky, Alan L. Weeks, Gerald J. Fortier +3 more	2000-02-08	$15,149,000
5157928	Electronically controlled cryopump	Peter W. Gaudet, Donald A. Olsen, Michael J. Eacobacci, John T. Harvell, Robert J. Lepofsky +1 more	1992-10-27	$816,000
4918930	Electronically controlled cryopump	Peter W. Gaudet, Donald A. Olsen, Michael J. Eacobacci, John T. Harvell, Robert J. Lepofsky +1 more	1990-04-24	$272,000

David E. Roche — 3 Patents

Issued Patents All Time

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