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Inventor

John P. Gaewsky

Inventor
Reading, MA, US

Overview

10→
Patents
1985–2008
Patent span
Physics
Primary field (CPC G)

Patents· 10 as inventor

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

G03Bprimary
G03BApparatus or arrangements for taking photographs or for projecting or viewing them31%
H05BElectric heating23%
H01JElectric discharge tubes or discharge lamps15%
A63HToys, e.g. tops, dolls, hoops or building blocks8%
G02BOptical elements, systems or apparatus8%
G09BEducational or demonstration appliances8%
LOC168%
PatentTitleYear
7,333,768'Apparatus and method for sound storage and retrieval'20087,097,532'Mobile device with color discrimination'2006D0451528'LCD projector'20015,117,252'Electronic flash control system for use in a fixed focus lens camera for increasing depth of field by the timing of flash actuation'19925,109,248'Variable color-output strobe for photographic apparatus'19924,998,128'Preflash measurement technique'19914,978,892'Variable color-output strobe'19904,972,217'Shutter mechanism drive having reduced mechanical noise'19904,887,118'Electronic flash camera having reduced cycle time'19894,502,773'Two zone infrared ranging system'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2001Patents assigned to POLAROID CORP (8)· patent assignee history
1985–2008Based in Reading, MA, US· patent location history
2006–2008Patents assigned to COLTMAN JUDITH NEELY (2)· patent assignee history
2006–2008Patents assigned to GAEWSKY JOHN (2)· patent assignee history
2006Patents assigned to ROLICKI PETER (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
POLAROID CORP81985–2001
COLTMAN JUDITH NEELY22006–2008
GAEWSKY JOHNself22006–2008
ROLICKI PETER12006
Locations
LocationPatentsSpan
Reading, Massachusetts, US101985–2008