James J. Wulfing — 11 Patents at 3M

James J. Wulfing has been granted 11 US patents while listed as an inventor at 3M. The first was granted in 1984 and the most recent in September 1998. James J. Wulfing ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list James J. Wulfing in Afton, MN, US.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5812351	Raised-region having sloped edges under cleaning fabric in flexible magnetic recording diskette cartridge cover shell	Jon R. Clark	1998-09-22	$7,426,000
5748419	Write protect mechanism with spring element for data storage diskette and fabrication method	Lee M. Langseth, David L. Hubbling, Jerome V. Gagnier	1998-05-05	$8,574,000
5640298	Recording disc cartridge having centrally-located, integral, raised wear surface	—	1997-06-17	$3,581,000
D369791	Front face of a write-protect latch on a disk cartridge	Craig A. Bane, Gregory A. Theis	1996-05-14
5189586	Lanced shutter tab for disk cartridges	Paul Rumpza	1993-02-23	$9,342,000
4752046	Videocassette tape spool having a wear button	—	1988-06-21	$19,977,000
4527755	Hinged visor-type door for tape cassette	Robert M. Rood	1985-07-09	$3,858,000
4520969	Videocassette tape spool having a wear button	Robert M. Rood	1985-06-04	$5,142,000
4515323	Tape spool	Robert M. Rood	1985-05-07	$5,629,000
4515330	Tape roller for a tape cassette	Robert M. Rood	1985-05-07	$5,629,000
4472753	Braking mechanism for cassette tape reel	—	1984-09-18	$3,717,000

James J. Wulfing — 11 Patents

Issued Patents All Time

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