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Inventor

David J. Schoon

Inventor
Somerville, MA, US

Overview

34→
Patents
1976–2021
Patent span
Physics
Primary field (CPC G)

Patents· 34 as inventor

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

F24Cprimary
F24CDomestic stoves or ranges14%
G06KGraphical data reading14%
A47BTables10%
E05FDevices for moving wings into open or closed position10%
E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof10%
H04NPictorial communication, e.g. television8%
B41JTypewriters7%
A61BDiagnosis3%
G02BOptical elements, systems or apparatus3%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein3%
PatentTitleYear
11,096,797Zero-profile expandable intervertebral spacer devices for distraction and spinal fusion and a universal tool for their placement and expansion202110,939,711Noise suppression device for a personal impact protection system202110,508,817Oven appliance with dual opening and closing doors201910,018,364Oven appliance with dual opening and closing doors20189,890,957'Oven appliance with dual opening and closing doors'20189,700,324'Surgical clip applicator'20179,651,265'Oven appliance with dual opening and closing doors'20179,644,848'Oven appliance with dual opening and closing doors'20179,494,323'Oven appliance with dual opening and closing doors'20169,328,929'Oven appliance with dual opening and closing doors'20169,255,712'Oven appliance with doors having a tongue and groove interface'20169,188,346'Oven appliance with dual opening and closing doors'20158,944,536'Oven appliance with dual opening and closing doors'20156,148,134'Fiber mounts for fiber optic harness in a fiber optic-based imaging system'20005,684,620'High resolution imaging system and method of imaging using the same'19975,565,906'Clocking means for bandwise imaging device'19965,481,398'Temperature stabilization means for imaging output recorder'19965,434,600'Illumination module for bandwise imaging device'19955,250,982'Apparatus and method of imaging UV-sensitive media'19935,225,851'Band imaging device'19935,054,893'Electro-optic cell linear array'19914,870,498'Decompressing run-length-encoded to transition-encoded font image information in an image generator'19894,857,904'Combination of transition-encoded font information for generation of superimposed font images'19894,847,607'Image generation from transition-encoded font information'19894,686,363'Self-resonant scanner biasing system'19874,683,551'Ram clock switching circuitry for a laser beam printer'19874,631,726'Laser diode control circuitry'19864,630,223'Scanner amplitude stabilization system'19864,586,057'Compensation circuitry for a laser printer using a self-resonant scanner'19864,571,623'Data clocking circuitry'19864,541,061'Data clocking circuitry for a scanning apparatus'19854,242,565'Thermal print head'19803,982,124'Electro-optical feedback signal producing apparatus'19763,934,136'Threshold signal circuitry for scanning apparatus'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1987Patents assigned to MINNESOTA MINING & MFG (9)· patent assignee history
1976–1980Based in Marine on St. Croix, MN, US· patent location history
1985–1987Based in North Branch, MN, US· patent location history
1987–1989Based in St. Paul, MN, US· patent location history
1991–2000Patents assigned to SCHOONSCAN INC (8)· patent assignee history
1991–2000Based in Mendota Heights, MN, US· patent location history
2015–2016Patents assigned to GEN ELECTRIC (5)· patent assignee history
2015–2018Patents assigned to CHILTON JOHN MARK (4)· patent assignee history
2015–2021Based in Somerville, MA, US· patent location history
2016–2019Patents assigned to HAIER US APPLIANCE SOLUTIONS INC (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MINNESOTA MINING & MFG91976–1987
SCHOONSCAN INC81991–2000
HAIER US APPLIANCE SOLUTIONS INC62016–2019
GEN ELECTRIC52015–2016
CHILTON JOHN MARK42015–2018
Locations
LocationPatentsSpan
Somerville, Massachusetts, US112015–2021
Mendota Heights, Minnesota, US81991–2000
North Branch, Minnesota, US61985–1987
St. Paul, Minnesota, US41987–1989
Marine on St. Croix, Minnesota, US31976–1980