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ZIMMERMAN D W MFG

Overview
  • Total Patents
    64
About

ZIMMERMAN D W MFG has a total of 64 patent applications. Its first patent ever was published in 1966. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets packaging and shipping, machines and engines, pumps and turbines are WALLACE PROD CORP B E, LEBUS ROYALTY COMPANY and SCHIESS DEFRIES HEBEZEUG UND K.

Patent filings in countries

World map showing ZIMMERMAN D W MFGs patent filings in countries
# Country Total Patents
#1 United States 25
#2 Canada 14
#3 United Kingdom 6
#4 Japan 5
#5 Australia 4
#6 Germany 3
#7 France 3
#8 Italy 2
#9 Netherlands 2

Patent filings per year

Chart showing ZIMMERMAN D W MFGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Owen Douglas B 11
#2 Fox Albert D 10
#3 Fox Albert Dale 8
#4 Kish Robert Joseph 8
#5 Powell Edgar R 6
#6 Stone Charles W 5
#7 Kish Robert J 5
#8 Conboy Stewart Jay 4
#9 Knight Donn Charles 4
#10 Knight Donn C 4

Latest patents

Publication Filing date Title
US4759571A Fluid transfer module with multiple flow paths
JPS6397595A Body treater
IT8648507D0 Appts. for handling and transferring bobbins
US4674959A Pressure-operated valve, particularly for a downhole pump
US4708574A Apparatus for handling objects
JPS59212389A Handling device for freight
CA1224772A Fluid-operated apparatus for handling and lifting loads
US4500074A Fluid-operated apparatus for handling and lifting loads
CA1184071A Well pump check valve pressure actuated for drainage
US4468175A Fluid driven successive stage bladder pump
US4478558A Downhole pump with check valve
US4439113A Liquid pump with flexible bladder member
US4462571A Fluid-operated, load-handling apparatus
CA1137954A Working pit with articulated to arm assembly
US4360320A Fluid driven successive stage bladder pump
US4265147A Working pit with articulated tool arm assembly
US4273499A Apparatus for manipulating signature bundles
US4247092A Apparatus for handling a plurality of signature bundles
US4256429A Apparatus for handling signature bundles
US4226567A Apparatus for handling bobbins