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Inventor

James J. Handzel

Inventor
Golden Valley, MN, US

Overview

9→
Patents
1992–2015
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 9 as inventor

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

F04Bprimary
F04BPositive-displacement machines for liquids30%
B05BSpraying apparatus20%
LOC1520%
B67DDispensing, delivering or transferring liquids, not otherwise provided for10%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
9,192,950'Sprayer for a fluid delivery system'20157,878,425'Liquid supply attachment for spray gun'2011D0623663'Fluid delivery system'2010D0620499'Fluid pump assembly'20105,971,714'Electronic CAM compensation of pressure change of servo controlled pumps'19995,605,446'High viscosity material pump having valved priming piston'1997D0372034'Reciprocating pump'19965,456,583'Liquid pump'19955,117,998'Universal five gallon wiper plate assembly'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1999Patents assigned to GRACO INC (5)· patent assignee history
1992–1996Based in New Hope, MN, US· patent location history
1995–1997Based in Minnetonka, MN, US· patent location history
1999–2015Based in Golden Valley, MN, US· patent location history
2010–2015Patents assigned to WAGNER SPRAY TECH CORP (4)· patent assignee history
2015Patents assigned to ANDERSON RICHARD P (1)· patent assignee history
2015Patents assigned to CARLETON CHRISTOPHER W (1)· patent assignee history
2015Patents assigned to HANDZEL JAMES J (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GRACO INC51992–1999
WAGNER SPRAY TECH CORP42010–2015
ANDERSON RICHARD P12015
CARLETON CHRISTOPHER W12015
HANDZEL JAMES Jself12015
Locations
LocationPatentsSpan
Golden Valley, Minnesota, US51999–2015
Minnetonka, Minnesota, US21995–1997
New Hope, Minnesota, US21992–1996