Inventor

Robert D. Cooper

Inventor

Elk River, MN, US

Overview

11→

Patents

1993–2014

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 11 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F04Bprimary

F04BPositive-displacement machines for liquids47%

F05CIndexing scheme relating to materials, material properties or material characteristics for machines, engines or pumps other than non-positive-displacement machines or engines11%

Y10TTechnical subjects covered by former us classification11%

B01DSeparation5%

F16KValves5%

H01HElectric switches5%

H02KDynamo-electric machines5%

LOC155%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

PatentTitleYear

D0700916'Paint spray pump housing'2014 7,886,876'On board oil reservoir for lubricating piston paint pump'2011 7,018,181'Swashplate pump'2006 6,933,634'Fan baffle'2005 6,599,107'Piston pump having housing with a pump housing and a pump assembly drive housing formed therein'2003 6,435,846'Piston pump having housing with a pump housing and a pump assembly drive housing formed therein'2002 6,419,456'Switch for controlling the motor of a piston pump'2002 6,276,907'Hydraulically driven diaphragm pump'2001 5,472,318'Rupture disk pressure relief assembly for a paint pump'1995 5,316,445'Pumping apparatus with piston seal and cylinder removing means'1994 5,192,425'Mounting base and assembly for pressure sensor, filter and pressure relief valve'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2014Patents assigned to WAGNER SPRAY TECH CORP (11)· patent assignee history

1993–1995Based in Blaine, MN, US· patent location history

2001–2014Based in Elk River, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WAGNER SPRAY TECH CORP	11	1993–2014

Locations

Location	Patents	Span
Elk River, Minnesota, US	8	2001–2014
Blaine, Minnesota, US	3	1993–1995