William Brown — 54 Patents at Spx

William Brown has been granted 54 US patents while listed as an inventor at Spx. The first was granted in 1980 and the most recent in April 2020. William Brown ranks #46,969 of 4,157,543 US inventors in our database (top 1.1%). Patent records list William Brown in Owatonna, MN, US.

Issued Patents All Time

Showing 1–25 of 54 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10627142	Apparatus and method for determining the quantity of dissolved refrigerant in oil recovered from an air conditioning system	Mark McMasters, Mahendra Hospet Basavapura Srinivasa	2020-04-21
10429110	System and method for recovering refrigerant	Dylan M. Lundberg, Mark McMasters, Jacob Hanson	2019-10-01
9732999	System and method for recovering refrigerant	Dylan M. Lundberg, Mark McMasters	2017-08-15
9470443	Modified hose flush device and method	Mark McMasters, Dylan M. Lundberg	2016-10-18
9447998	Method and apparatus for improving the charge accuracy of a refrigerant recovery unit	Mark McMasters, Dylan M. Lundberg	2016-09-20
9366465	System and method for improving charge accuracy by temperature compensation	Mark McMasters, Gary P. Murray	2016-06-14
9207006	Method for accurately recharging A/C systems	Mark McMasters	2015-12-08
9074801	Apparatus and method for identifying and operating air purge in safe mode and having a dip tube	Mark McMasters	2015-07-07
8661836	Apparatus to clear oil from the hoses and front end of a recovery recharge machine	Gary P. Murray, Mark McMasters	2014-03-04
8621879	Air conditioning system recharging method and apparatus	Mark McMasters	2014-01-07
8616011	Internal clearing function for a refrigerant recovery/recharge machine	Gary P. Murray	2013-12-31
8590335	Method and apparatus for clearing oil inject circuit for changing oil types	Mark McMasters, Gary P. Murray	2013-11-26
8572992	Method for recovery and recharge of blend refrigerants with blend sent for reclamation	Gary P. Murray, Mark McMasters	2013-11-05
8516836	System and method for accurately recharging an air conditioning system	Mark McMasters	2013-08-27
8434344	Verification of scale calibration method and apparatus	Mark McMasters	2013-05-07
8406931	A/C service tool controller	Mark McMasters, Michael Steven Schoenoff	2013-03-26
8272228	Apparatus to clear oil from the hoses and front end of a recovery recharge machine	Gary P. Murray, Mark McMasters	2012-09-25	$6,681,000
8272227	System and method for accurately recharging an air conditioning system	Mark McMasters	2012-09-25	$6,681,000
8261564	Refrigerant recovery apparatus with variable vacuum time and method	Gary P. Murray	2012-09-11	$21,691,000
8122731	Method and apparatus for clearing oil inject circuit for changing oil types	Mark McMasters, Gary P. Murray	2012-02-28	$25,534,000
8079226	Method for accurately recharging A/C systems	Mark McMasters	2011-12-20	$20,737,000
8070857	Particulate removal tool	Jim Jirele, Stan Norland, Jamie Stringfield, David Painter, Mark Alan Gasper +6 more	2011-12-06	$10,344,000
7854133	Air conditioning service station with electrically driven analog-display pressure gauges	Travis Bakker	2010-12-21	$6,133,000
7854130	Internal clearing function for a refrigerant recovery/recharge machine	Gary P. Murray	2010-12-21	$6,133,000
7739895	Verification of scale calibration method and apparatus	Mark McMasters	2010-06-22	$15,981,000

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William Brown — 54 Patents

Issued Patents All Time

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