Inventor

Charles A. Sellers

Inventor

Houston, TX, US

Overview

1991–2020

Patent span

Physics

Primary field (CPC G)

Patents· 46 as inventor

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

G06Fprimary

G06FElectric digital data processing41%

H01HElectric switches19%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables6%

G03GElectrography5%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

B41JTypewriters2%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein2%

H03KPulse technique2%

H04NPictorial communication, e.g. television2%

PatentTitleYear

10,745,724Anaplerotic oil production in microbials2020 9,563,281'Keyboard illumination apparatus and method'2017 9,208,971'Keyboard insert'2015 8,946,570'Keyboard systems utilizing a switch and proximity sensors'2015 8,917,243'System for illuminating a keycap on a keyboard'2014 7,907,393'Display support for a clamshell electronic device'2011 7,539,329'Method and apparatus for enhancing the usability of an electronic device having an integrated fingerprint sensor'2009 7,518,336'Battery pack event-proof monitoring and analysis system and method'2009 D0540334'Small footprint keyboard'2007 6,873,522'System and method for pivotably securing display housing to computer system'2005 6,791,628'Portable computer system incorporating a rear projection display'2004 6,741,456'System and method for pivotably securing display housing to computer system'2004 6,633,986'Liquid spill-sensing keyboard which shuts down when a liquid spill is detected'2003 6,437,972'Keyboard with interior stiffening ribs'2002 6,184,943'Portable computer system incorporating a rear projection display'2001 6,054,979'Current sensing touchpad for computers and the like'2000 5,995,026'Programmable multiple output force-sensing keyboard'1999 5,966,285'Mobile portable computer docking/office station'1999 5,864,334'Computer keyboard with switchable typing/cursor control modes'1999 5,821,922'Computer having video controlled cursor system'1998 5,808,602'Rotary cursor positioning apparatus'1998 5,793,605'Collapsible portable computer keyboard with resilient preload key stabilization'1998 5,768,239'Compact computer memory media handling apparatus'1998 5,742,242'Keyboard using pressurized fluid to generate key stroke characteristics'1998 5,736,687'Digitizer utilizing heat source detection to receive input information'1998 5,677,826'Double spring collapsible keyboard structure for a notebook computer, responsive to opening and closing of the computer\'s lid via relatively shiftable key support structure and shift member'1997 5,675,810'Reducing power usage in a personal computer'1997 5,669,004'Reducing power usage in a personal computer'1997 5,666,541'Reducing power usage in a personal computer'1997 5,654,872'Collapsible keyboard structure for a notebook computer'1997 5,629,832'Electronic device keyboard with pivot bar tilt mechanism'1997 5,625,532'Reduced height keyboard structure for a notebook computer'1997 5,621,610'Collapsible computer keyboard structure with associated collapsible pointing stick'1997 5,602,715'Collapsible keyboard structure for a notebook computer, responsive to opening and closing of the computer\'s lid via relatively shiftable key support member and shift member'1997 5,594,618'Collapsible pointing stick apparatus for a portable computer'1997 5,590,020'Collapsible notebook computer keyboard structure with resiliently deflectable key cap skirts'1996 5,587,875'Collapsible notebook computer keyboard structure with horizontally and downwardly shiftable key return domes'1996 5,539,615'Notebook computer keyboard with slot-supported sliding pin tilt mechanism'1996 5,532,904'Collapsible keyboard structure for a notebook computer, responsive to opening and closing of the computer\'s lid'1996 5,519,569'Compact notebook computer having a foldable and collapsible keyboard structure'1996 5,335,005'Expanded area printing methods and associated apparatus for an image reproduction machine'1994 5,195,735'Paper handling method for controllably removing an individual sheet of paper from a stack of paper'1993 5,163,670'Dual bin paper feed tray for an image reproduction machine such as a printer or copier'1992 5,158,275'Multiple tray rotary paper feed system for an image reproduction machine'1992 5,085,421'Dual bin paper feed tray for an image reproduction machine such as a printer or copier'1992 5,069,434'Removable dual bin envelope feed tray for an image reproduction machine'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2002Patents assigned to COMPAQ COMPUTER CORP (33)· patent assignee history

1991–2017Based in Houston, TX, US· patent location history

2003–2015Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (11)· patent assignee history

2014–2017Patents assigned to SELLERS CHARLES A (4)· patent assignee history

2020Patents assigned to HELIAC DEV LLC (1)· patent assignee history

2020Patents assigned to HELIAE DEV LLC (1)· patent assignee history

2020Based in Mesa, AZ, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
COMPAQ COMPUTER CORP	33	1991–2002
HEWLETT PACKARD DEVELOPMENT CO	11	2003–2015
SELLERS CHARLES Aself	4	2014–2017
HELIAC DEV LLC	1	2020
HELIAE DEV LLC	1	2020

Locations

Location	Patents	Span
Houston, Texas, US	45	1991–2017
Mesa, AZ, US	1	2020