Inventor

John P. Ertel

Inventor
Portola Valley, CA, US

Overview

28→
Patents
1991–2018
Patent span
Performing operations
Primary field (CPC B)

Patents· 28 as inventor

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

B42Cprimary
B42CBookbinding19%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
G02BOptical elements, systems or apparatus11%
Y10TTechnical subjects covered by former us classification11%
B41JTypewriters7%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light6%
B42PIndexing scheme relating to books, filing appliances or the like4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
G01SRadio direction-finding4%
H04NPictorial communication, e.g. television4%
PatentTitleYear
10,078,048Refractometer assemblies, methods of calibrating the same, and methods of determining unknown refractive indices using the same20189,389,374'Fiber optic sub-assembly with low profile'20169,170,387'Optical component assemblies'20158,979,394'Self-contained total internal reflection sub-assembly'20158,913,858'Total-internal-reflection fiber optic interface modules and assemblies'20148,834,041'Ferrule-based optical component assemblies'20148,210,788'Systems and methods of attaching a cover to a text body'20127,468,753'Use of telephone-specific components to provide refocusing in a camera-ready device'20086,986,631'Systems and methods of binding a text body'20066,921,676'Wafer-scale manufacturing method'20056,866,459'Systems and methods of registering a cover with respect to a text body'20056,842,286'Optical system and methods that compensate for changes in atmospheric conditions'20056,752,578'Binding sheets by activating a microencapsulated binding agent'20046,739,816'Systems and methods of attaching a cover to a text body'20046,732,777'Dispensing adhesive in a bookbinding system'20046,698,743'Determining when adhesive in a replaceable adhesive dispenser is nearly spent'20046,641,345'Systems and methods of increasing binding strength of a bound text body'20036,619,900'Systems and methods of binding a text body'20036,572,318'Managing bookbinding consumables'20035,923,412'Encapsulated liquid toner printing apparatus'19995,771,254'Integrated controlled intensity laser-based light source'19985,761,229'Integrated controlled intensity laser-based light source'19985,727,014'Vertical-cavity surface-emitting laser generating light with a defined direction of polarization'19985,650,808'Color ink jet pen having nozzle group spacing to prevent color bleed'19975,149,980'Substrate advance measurement system using cross-correlation of light sensor array signals'19925,140,674'Text and color printing system'19925,065,169'Device to assure paper flatness and pen-to-paper spacing during printing'19915,041,846'Heater assembly for printers'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1999Patents assigned to HEWLETT PACKARD CO (9)· patent assignee history
1991–2012Based in Portola Valley, CA, US· patent location history
1998Based in Fountain Valley, CA, US· patent location history
2003–2012Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (10)· patent assignee history
2005–2018Based in Half Moon Bay, CA, US· patent location history
2012–2015Patents assigned to ERTEL JOHN P (4)· patent assignee history
2014–2016Patents assigned to CORNING CABLE SYS LLC (5)· patent assignee history
2014–2015Patents assigned to TROTT GARY R (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HEWLETT PACKARD DEVELOPMENT CO102003–2012
HEWLETT PACKARD CO91991–1999
CORNING CABLE SYS LLC52014–2016
ERTEL JOHN Pself42012–2015
TROTT GARY R32014–2015
Locations
LocationPatentsSpan
Portola Valley, California, US191991–2012
Half Moon Bay, California, US82005–2018
Fountain Valley, California, US11998