John C DiFonzo

Inventor

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Work History

Patent OwnerApplications FiledYear
SPECTRA-PHYSICS, A CORP. OF DE
2
1988
SPECTRA-PHYSICS LASERS, INC.
4
1988
APPLE COMPUTER, INC.
1
1999
APPLE INC.
1
2
4
5
2
5
11
2
8
10
4
7
11
4
2
1999
2001
2002
2005
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017

Inventor Addresses

AddressDuration
Cupertino, CA, USJul 19, 22 - Jan 23, 25
Emerald Hill, CADec 09, 03 - Dec 09, 03
Emerald Hill, CA, USJul 11, 02 - Jul 11, 02
Emerald Hills, CAJul 17, 01 - Nov 13, 08
Emerald Hills, CA, USJun 20, 02 - Jul 11, 24
Redwood City, CA, USMar 21, 13 - Apr 03, 25
San Mateo County, CAJan 16, 90 - Jun 19, 90
San Mateo, CAOct 10, 89 - Oct 10, 89
San Mateo, CA, USMar 23, 21 - Jun 11, 24

Technology Profile

Technology Matters
B03C: MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS 1
B23P: OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 1
B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1

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Patents / Publication

Patents / Publication #Year of Publication / IssuedTitleCitations
2025/0111,9722025MAGNETIC SYSTEMS INCORPORATING ELECTROPERMANENT MAGNET ARRAYS0
2025/0104,8952025MIM MAGNETS0
2025/0030,4202025INPUT DEVICE HAVING ADJUSTABLE INPUT MECHANISMS0
2024/0235,1082024MAGNETIC CIRCUIT FOR MAGNETIC CONNECTOR0
120091622024Bistable retractable buttons0

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