Dave C. Hempfling

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Fastener having multiple lobed thread
- Patent number 7,101,134
- Issue date Sep 5, 2006
- Illinois Tool Works Inc.
- Kenneth LeVey
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Fastener driving tool having improved bearing and fastener guide as...
- Patent number 6,729,522
- Issue date May 4, 2004
- Illinois Tool Works Inc.
- Dave C. Hempfling
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Wall anchor with improved drilling tip
- Patent number 6,382,892
- Issue date May 7, 2002
- Dave C. Hempfling
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Fastener system including a fastener and a cap
- Patent number 6,293,744
- Issue date Sep 25, 2001
- Illinois Tool Works Inc.
- Dave C. Hempfling
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Fastener having multiple lobed thread
- Publication number 20020192051
- Publication date Dec 19, 2002
- Kenneth LeVey
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Fastener driving tool having improved bearing and fastener guide as...
- Publication number 20020108995
- Publication date Aug 15, 2002
- Dave C. Hempfling
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS