Michael E. Bitzel — 9 Patents at Black & Decker

Michael E. Bitzel has been granted 9 US patents while listed as an inventor at Black & Decker. The first was granted in 1983 and the most recent in November 2003. Michael E. Bitzel ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Michael E. Bitzel in Stevensville, MD, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6648567	Tool-free collet tightener	Robert A. Berry, Allen Brelsford, John Louis McKibben	2003-11-18	$9,930,000
6350087	Tool-free collet tightener	Robert A. Berry, Allen Brelsford, John Louis McKibben	2002-02-26	$27,240,000
5526596	Electric iron with storage base and method of storing the iron	Edward M. Kubicz, David Jalbert, Kenneth H. Patrick, Michael D. Morrissey, Arthur H. Freeman	1996-06-18	$10,713,000
4947514	Internal contact for a charging circuit	Burton E. Gerke, Jr., Robert Kubicko, Charles Z. Krasznai	1990-08-14	$3,324,000
4928346	Hand-held vacuum cleaner with power brush	Donald E. Elson, Burton E. Gerke, Jr., Bruce A. Wilder, Stanley J. Rodowsky, Jr., William R. Lessig, III +2 more	1990-05-29	$3,569,000
4920606	Electrical power circuit for a vacuum cleaner	Burton E. Gerke, Jr., Robert Kubicko, Charles Z. Krasznai	1990-05-01	$5,125,000
4912805	Dual-purpose rotating brush for vacuum cleaner	Charles Z. Krasznai, William D. Ryckman, Jr.	1990-04-03	$2,767,000
4841594	Cordless vacuum cleaner with power brush	Donald E. Elson, Burton E. Gerke, Jr., Bruce A. Wilder, Stanley J. Rodowsky, Jr., William R. Lessig, III +2 more	1989-06-27	$3,540,000
4385276	Mounting of semiconductor sensing means for an electromagnetic tachometer in a portable electric tool	—	1983-05-24	$7,095,000

Michael E. Bitzel — 9 Patents

Issued Patents All Time

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