David A. Murphy — 9 Patents at Frick

David A. Murphy has been granted 9 US patents while listed as an inventor at Frick. The first was granted in 1985 and the most recent in October 2022. David A. Murphy ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list David A. Murphy in Chambersburg, PA, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date
11458821	Rack mounted weather shield	—	2022-10-04
7761288	Polylingual simultaneous shipping of software	Karen P. Parnell, Hans Kedefors, Atsushi Kaneko, Daniel Salzer, Jayant Kulkarni +3 more	2010-07-20
6423895	Solar array for satellite vehicles	Michael R. Foster	2002-07-23
5718254	Adjustable bed canopy and curtain system	—	1998-02-17
5516414	Method and apparatus for electrolytically plating copper	Karl L. Glafenhein, Charles N. White, Shunji Hachisuka	1996-05-14
4678406	Variable volume ratio screw compressor with step control	Joseph W. Pillis, Peter C. Spellar, Paul Nemit, Jr.	1987-07-07
4548549	Micro-processor control of compression ratio at full load in a helical screw rotary compressor responsive to compressor drive motor current	Peter C. Spellar	1985-10-22
4519748	Micro-processor control of compression ratio at full load in a helical screw rotary compressor responsive to compressor drive motor current	Peter C. Spellar	1985-05-28
4516914	Micro-processor control of moveable slide stop and a moveable slide valve in a helical screw rotary compressor	Peter C. Spellar	1985-05-14

David A. Murphy — 9 Patents

Issued Patents All Time

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