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Inventor

Harold J. Welch

Inventor
San Jose, CA, US

Overview

13→
Patents
1995–2018
Patent span
Electricity
Primary field (CPC H)

Patents· 13 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H01Hprimary
H01HElectric switches40%
G06FElectric digital data processing28%
Y10TTechnical subjects covered by former us classification12%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%
F16HGearing4%
H03KPulse technique4%
H03MCoding4%
PatentTitleYear
9,972,453Rattle-free keyswitch mechanism20189,123,485'Keyboard design'20159,064,642'Rattle-free keyswitch mechanism'20159,024,214'Narrow key switch'20158,822,858'Keyboard design'20148,587,525'In-plane keyboard illumination'20138,477,049'Efficiently embedding information onto a keyboard membrane'20138,330,725'In-plane keyboard illumination'20126,987,466'Keyboard having a lighting system'20066,842,332'Magnetic securing system for a detachable input device'20056,833,825'Apparatus for remotely controlling a digital processing system'20046,510,048'Keyboard arrangement'20035,456,542'Adjustable data entry keyboard'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2006Patents assigned to APPLE COMPUTER (5)· patent assignee history
1995–2015Based in San Jose, CA, US· patent location history
2012–2015Patents assigned to APPLE INC (7)· patent assignee history
2012–2015Patents assigned to WELCH HAROLD J (4)· patent assignee history
2012–2015Patents assigned to KESSLER PATRICK (3)· patent assignee history
2013–2015Patents assigned to BRONSTEIN CHAD (2)· patent assignee history
2015–2018Based in Cupertino, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
APPLE INC72012–2015
APPLE COMPUTER51995–2006
WELCH HAROLD Jself42012–2015
KESSLER PATRICK32012–2015
BRONSTEIN CHAD22013–2015
Locations
LocationPatentsSpan
San Jose, California, US111995–2015
Cupertino, California, US22015–2018