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MADISON HEIGHTS, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Fluid transfer module with multiple flow paths
Patent number
4,759,571
Issue date
Jul 26, 1988
D. W. Zimmerman Mfg., Inc.
Charles W. Stone
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Apparatus for handling objects
Patent number
4,708,574
Issue date
Nov 24, 1987
D. W. Zimmerman Mfg., Inc.
Stewart J. Conboy
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Pressure-operated valve, particularly for a downhole pump
Patent number
4,674,959
Issue date
Jun 23, 1987
D. W. Zimmerman Mfg., Inc.
Albert D. Fox
E21 - EARTH DRILLING MINING
Information
Patent Grant
Fluid-operated apparatus for handling and lifting loads
Patent number
4,500,074
Issue date
Feb 19, 1985
D. W. Zimmerman Mfg., Inc.
Albert D. Fox
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Fluid-operated apparatus for handling and lifting loads
Patent number
4,478,390
Issue date
Oct 23, 1984
D. W. Zimmerman Mfg., Inc.
Donn C. Knight
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Downhole pump with check valve
Patent number
4,478,558
Issue date
Oct 23, 1984
D. W. Zimmerman Mfg., Inc.
Douglas B. Owen
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Fluid driven successive stage bladder pump
Patent number
4,468,175
Issue date
Aug 28, 1984
D. W. Zimmerman Mfg., Inc.
Douglas B. Owen
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Fluid-operated, load-handling apparatus
Patent number
4,462,571
Issue date
Jul 31, 1984
D. W. Zimmerman Mfg., Inc.
Albert D. Fox
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Liquid pump with flexible bladder member
Patent number
4,439,113
Issue date
Mar 27, 1984
D. W. Zimmerman Mfg., Inc.
Douglas B. Owen
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Fluid driven successive stage bladder pump
Patent number
4,360,320
Issue date
Nov 23, 1982
D. W. Zimmerman Mfg., Inc.
Douglas B. Owen
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Apparatus for manipulating signature bundles
Patent number
4,273,499
Issue date
Jun 16, 1981
D. W. Zimmerman Mfg., Inc.
Peter Berko
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Working pit with articulated tool arm assembly
Patent number
4,265,147
Issue date
May 5, 1981
D. W. Zimmerman Mfg., Inc.
Albert D. Fox
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Apparatus for handling signature bundles
Patent number
4,256,429
Issue date
Mar 17, 1981
D. W. Zimmerman Mfg., Inc.
Robert E. Dwyer
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Apparatus for handling a plurality of signature bundles
Patent number
4,247,092
Issue date
Jan 27, 1981
D. W. Zimmerman Mfg., Inc.
Robert E. Dwyer
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Apparatus for handling bobbins
Patent number
4,226,567
Issue date
Oct 7, 1980
D. W. Zimmerman Mfg., Inc.
Laurence S. Van Orsdale
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Interlock control system for a fluid-operated hoist
Patent number
3,933,388
Issue date
Jan 20, 1976
D. W. Zimmerman Mfg. Inc.
Stewart J. Conboy
B66 - HOISTING LIFTING HAULING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73509620 - TASK-TAILORED
Serial number
73509620
Registration number
1345584
Filing date
Nov 19, 1984
D. W. ZIMMERMAN MFG., INC.
6 - Common metals and their alloys
Information
Trademark
73507855 - Z RAIL
Serial number
73507855
Registration number
1380090
Filing date
Nov 8, 1984
D. W. ZIMMERMAN MFG., INC.
7 - Machines and machine tools
Information
Trademark
73017919 - MODULE-AIR
Serial number
73017919
Registration number
1016261
Filing date
Apr 4, 1974
D. W. ZIMMERMAN MFG., INC.
7 - Machines and machine tools
Information
Trademark
72445722 - Z
Serial number
72445722
Registration number
984921
Filing date
Jan 11, 1973
D. W. ZIMMERMAN MFG., INC.
7 - Machines and machine tools
Information
Trademark
72210630 - BALANCE-AIR
Serial number
72210630
Registration number
806340
Filing date
Jan 25, 1965
D. W. ZIMMERMAN MFG., INC.
7 - Machines and machine tools
Information
Trademark
72193832 - EQUI-AIR
Serial number
72193832
Registration number
782054
Filing date
May 19, 1964
D. W. ZIMMERMAN MFG., INC.
7 - Machines and machine tools