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Inventor

Henry E. Smith

Inventor
Pleasanton, CA, US

Overview

7→
Patents
1977–2006
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 7 as inventor

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

B41Jprimary
B41JTypewriters21%
Y10TTechnical subjects covered by former us classification16%
F01DNon-positive displacement machines or engines, e.g. steam turbines11%
F02CGas-turbine plants11%
F16KValves11%
F24FAir-conditioning11%
Y02TClimate change mitigation technologies related to transportation11%
B41FPrinting machines or presses5%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges5%
PatentTitleYear
7,114,519'Normally open reverse flow flapper valve'20066,851,255'Normally open reverse flow flapper valve'20054,576,494'Print wheel cartridge'19864,514,101'Paper thickness adjusting mechanism for impact printer'19854,453,847'Record carrier feed arrangement for a printer'19844,231,674'Clip for attaching guide rails to a frame'19804,024,813'Card printing machine'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to REYNOLDS PRINTASIGN COMPANY (1)· patent assignee history
1977Based in Canoga Park, CA, US· patent location history
1980–1986Patents assigned to XEROX CORP (4)· patent assignee history
1980–1986Based in Pleasanton, CA, US· patent location history
2005–2006Patents assigned to PRATT & WHITNEY CANADA (2)· patent assignee history
2005–2006Based in Oakville, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
XEROX CORP41980–1986
PRATT & WHITNEY CANADA22005–2006
REYNOLDS PRINTASIGN COMPANY11977
Locations
LocationPatentsSpan
Pleasanton, California, US41980–1986
Oakville, CA22005–2006
Canoga Park, California, US11977