Robert A. Grogan

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Salem, SC, US

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Patents Grantslast 30 patents

Information Patent Grant
Chuck
- Patent number 6,648,342
- Issue date Nov 18, 2003
- Power Tool Holders Incorporated
- William H. Aultman
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Chuck
- Patent number 6,540,236
- Issue date Apr 1, 2003
- Power Tool Holders Incorporated
- William H. Aultman
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Chuck
- Patent number 6,428,018
- Issue date Aug 6, 2002
- Power Tool Holders Incorporated
- William H. Aultman
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Chuck with improved bearing
- Patent number 6,402,160
- Issue date Jun 11, 2002
- Power Tool Holders Incorporated
- Robert A. Grogan
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Tool clamping device
- Patent number 6,050,741
- Issue date Apr 18, 2000
- Power Tool Holders Incorporated
- William H. Aultman
- B24 - GRINDING POLISHING
Information Patent Grant
Quick release integrated collet and chuck device
- Patent number 5,820,136
- Issue date Oct 13, 1998
- Power Tool Holders Incorporated
- Erik G. Han
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Chuck
- Publication number 20030127809
- Publication date Jul 10, 2003
- William H. Aultman
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Chuck
- Publication number 20020180164
- Publication date Dec 5, 2002
- William H. Aultman
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Chuck
- Publication number 20020163140
- Publication date Nov 7, 2002
- Robert A. Grogan
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC