Robert E. Derby

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Racine, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Hair trimmer
- Patent number 6,948,248
- Issue date Sep 27, 2005
- Andis Company
- Matthew L. Andis
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Rechargeable hair clipper assembly
- Patent number 6,112,414
- Issue date Sep 5, 2000
- Andis Company
- Matthew L. Andis
- B26 - HAND CUTTING TOOLS CUTTING SEVERING

Patents Applicationslast 30 patents

Information Patent Application
Cordless Hair Cutter with Improved Energy Storage
- Publication number 20200384661
- Publication date Dec 10, 2020
- Andis Company
- Richard J. Tringali
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
Hair Clipper with Light Source
- Publication number 20080250645
- Publication date Oct 16, 2008
- Richard J. Tringali
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
Hair trimmer
- Publication number 20060174487
- Publication date Aug 10, 2006
- Andis Company
- Matthew L. Andis
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
Hair trimmer
- Publication number 20060162516
- Publication date Jul 27, 2006
- Andis Company
- Matthew L. Andis
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
Controller for hand-held electrical device for cutting hair
- Publication number 20060059696
- Publication date Mar 23, 2006
- Andis Company
- Robert E. Derby
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
Hair trimmer
- Publication number 20060011028
- Publication date Jan 19, 2006
- Andis Company
- Matthew L. Andis
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
Hair trimmer
- Publication number 20040083613
- Publication date May 6, 2004
- Andis Company
- Matthew L. Andis
- B26 - HAND CUTTING TOOLS CUTTING SEVERING