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Inventor

Ian Campbell

Inventor
Seattle, WA, US

Overview

7→
Patents
1976–2021
Patent span
Human necessities
Primary field (CPC A)

Patents· 7 as inventor

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

A63Fprimary
A63FCard, board, or roulette games36%
G06FElectric digital data processing29%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing7%
B29BPreparation or pretreatment of the material to be shaped7%
F04BPositive-displacement machines for liquids7%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids7%
G05GControl devices or systems insofar as characterised by mechanical features only7%
PatentTitleYear
11,033,809Using finger presence to activate a motion control feature for a handheld controller202110,947,969Polymeric materials202110,806,993Handheld controllers with swappable controls202010,691,233Sensor fusion algorithms for a handheld controller that includes a force sensing resistor (FSR)202010,639,543Handheld controllers with touch-sensitive controls202010,406,431Hand-held controller with a back shell and underlying force sensitive resistors20193,992,012'Electrical golf club swing monitor'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to CAMPBELL IAN R (1)· patent assignee history
1976Based in Islington, CA· patent location history
2019–2021Patents assigned to VALVE CORP (5)· patent assignee history
2019–2020Based in Bellevue, WA, US· patent location history
2020–2021Based in Seattle, WA, US· patent location history
2021Patents assigned to COLORMATRIX EUROPE LTD (1)· patent assignee history
2021Patents assigned to COLORMATRIX HOLDINGS INC (1)· patent assignee history
2021Based in Liverpool, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
VALVE CORP52019–2021
CAMPBELL IAN Rself11976
COLORMATRIX EUROPE LTD12021
COLORMATRIX HOLDINGS INC12021
Locations
LocationPatentsSpan
Seattle, Washington, US32020–2021
Bellevue, Washington, US22019–2020
Liverpool, GB12021
Islington, CA11976