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Michael W. Clegg
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Toledo, OH, US
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last 30 patents
Information
Patent Grant
Pipe assembly for efficient light-off of catalytic converter
Patent number
5,390,494
Issue date
Feb 21, 1995
AP Parts Manufacturing Company
Michael W. Clegg
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Stamp formed connector for achieving equal length exhaust pipes
Patent number
5,327,722
Issue date
Jul 12, 1994
AP Parts Manufacturing Company
Michael W. Clegg
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Stamp formed muffler with low back pressure
Patent number
5,173,577
Issue date
Dec 22, 1992
AP Parts Manufacturing Co.
Michael W. Clegg
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Stamp formed muffler with compound reinforcement pattern for preven...
Patent number
5,164,551
Issue date
Nov 17, 1992
AP Parts Manufacturing Co.
Jon W. Harwood
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Apparatus for manufacturing stamp formed mufflers
Patent number
5,042,125
Issue date
Aug 27, 1991
AP Parts Manufacturing Company
Jon W. Harwood
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Process for manufacturing stamp formed mufflers
Patent number
4,928,372
Issue date
May 29, 1990
AP Parts Manufacturing Company
Jon W. Harwood
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Stamp formed muffler and catalytic converter assembly
Patent number
4,894,987
Issue date
Jan 23, 1990
AP Parts Manufacturing Company
Jon W. Harwood
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Method for manufacturing a heat shielded exhaust system component
Patent number
4,656,712
Issue date
Apr 14, 1987
AP Industries, Inc.
Jon Harwood
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Hybrid exhaust manifold
Patent number
4,537,027
Issue date
Aug 27, 1985
APX Group, Inc.
Jon W. Harwood
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Replacement muffler and process for making same
Patent number
4,516,659
Issue date
May 14, 1985
APX Group, Inc.
James R. Hall
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Process for making a replacement muffler
Patent number
4,486,932
Issue date
Dec 11, 1984
APX Group, Inc.
James R. Hall
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Threaded muffler nipple and bushing
Patent number
4,473,131
Issue date
Sep 25, 1984
APX Group, Inc.
Michael W. Clegg
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES