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Inventor

Mahesan Chelvayohan

Inventor
Lexington, KY, US

Overview

28→
Patents
1996–2014
Patent span
Physics
Primary field (CPC G)

Patents· 28 as inventor

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

B41Jprimary
B41JTypewriters29%
G01NInvestigating or analysing materials by determining their chemical or physical properties18%
H04NPictorial communication, e.g. television18%
G01VGeophysics8%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables5%
G03GElectrography5%
G06FElectric digital data processing5%
Y10TTechnical subjects covered by former us classification5%
G01FMeasuring volume, volume flow, mass flow or liquid level3%
H01QAntennas, i.e. radio aerials3%
PatentTitleYear
8,705,147'Image illumination and capture in a scanning device'20147,926,896'Print media detection in an imaging apparatus'20117,835,041'Method and device for reducing a size of a scanning device'20107,744,077'Jam-door open sensing using media sensor and method for use thereof'20107,746,517'Image illumination and capture in a scanning device'20107,693,329'Bound document scanning method and apparatus'20107,681,980'Ink identification and detection system with ink for use therewith'20107,529,007'Methods of identifying the type of a document to be scanned'20097,518,762'Illuminated media position indicator and method of use'20097,401,878'Print media detection in an imaging apparatus'20087,358,997'Multiple resolution optical imager using single size image elements'20087,224,493'Imaging apparatus having a media sensor'20077,205,561'Media sensor apparatus using a two component media sensor for media absence detection'20077,198,265'Imaging apparatus including a movable media sensor'20077,185,885'Print media depletion detection in an imaging apparatus'20077,049,620'Media type sensing method for an imaging apparatus'20067,013,804'Method of ink level determination for multiple ink chambers'20066,998,628'Method of media type differentiation in an imaging apparatus'20066,962,078'Liquid level detection gauge and associated methods'20056,914,684'Method and apparatus for detecting media type'20056,900,449'Media type sensing method for an imaging apparatus'20056,794,669'Media sensing apparatus for detecting an absence of print media'20046,713,775'Method to correct for sensitivity variation of media sensors'20046,590,223'Apparatus and method for media presence detection'20036,360,582'Method for calibration of chemical sensor in measuring changes in chemical concentration'20026,067,840'Method and apparatus for infrared sensing of gas'20005,635,136'Apparatus for sensing combustible gases employing an oxygen-activated sensing element'19975,521,099'Method and apparatus for sensing combustible gases employing and oxygen-activated sensing element'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–1997Patents assigned to UNIV ARIZONA (2)· patent assignee history
1996–1997Based in El Cerrito, CA, US· patent location history
2000–2002Patents assigned to TEXAS INSTRUMENTS INC (2)· patent assignee history
2000–2014Based in Lexington, KY, US· patent location history
2003–2014Patents assigned to LEXMARK INT INC (24)· patent assignee history
2014Patents assigned to CHELVAYOHAN MAHESAN (1)· patent assignee history
2014Patents assigned to KING ANTHONY MICHAEL (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LEXMARK INT INC242003–2014
TEXAS INSTRUMENTS INC22000–2002
UNIV ARIZONA21996–1997
CHELVAYOHAN MAHESANself12014
KING ANTHONY MICHAEL12014
Locations
LocationPatentsSpan
Lexington, KY, US262000–2014
El Cerrito, California, US21996–1997