Charles E. Johnson — 31 Patents at Comcast

Charles E. Johnson has been granted 31 US patents while listed as an inventor at Comcast. The first was granted in 1980 and the most recent in October 2025. Charles E. Johnson ranks #115,823 of 4,157,543 US inventors in our database (top 2.8%). Patent records list Charles E. Johnson in Omak, WA, US.

Issued Patents All Time

Showing 1–25 of 31 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
D1098611	Knee, shin, and ankle protection sleeve	—	2025-10-14
10816431	Leak detection system for underground access chambers using conductivity	Charles A. Hansen, Mark Grabowski, Sean Blottie, Cory Peters, Sonja Hansen +1 more	2020-10-27
D841728	Circular piano	Brockett Parsons, David T. Starkey	2019-02-26
10045625	Recliner footrest extension system and method	—	2018-08-14
9785123	Digital analog display with rotating bezel	Anna-Marie Mansour, Rowland Brown, Aaren B. Esplin, Wendy March, Steven Holmes +3 more	2017-10-10	$9,084,000
9679542	Circular piano keyboard	Brockett Parsons, Kareem Devlin Byrne, Richard Fell, James M. Behmke	2017-06-13
8952232	Circular piano keyboard	Brockett Parsons, Kareem Devlin Byrne, Richard Fell, James M. Behmke	2015-02-10
D697509	Controller	—	2014-01-14
8517742	Labor resource testing system and method	Frank Kaupa	2013-08-27	$126,840,000
8123245	Stabilized mobile unit or wheelchair	Phillip N. Brown	2012-02-28
7921954	Stabilized mobile unit or wheelchair	Phillip N. Brown, Jim Penson	2011-04-12
7758063	Stabilized mobile unit or wheelchair	Phillip N. Brown	2010-07-20
7694780	Pump for transfer case	Hans R. Beels van Heemstede, Christopher E. Blair, Wayne Wyant, Bryan C. Wright	2010-04-13	$17,393,000
7527467	Retractable ramp system for a mobility vehicle	Paul Edwards, Ryan K. Malone	2009-05-05
7434452	Method of engine calibration	—	2008-10-14
7028210	System and method for automatically correcting timers	—	2006-04-11	$259,000
6981167	Programmable controller with sub-phase clocking scheme	Michael K. Hales, Ronald Harris	2005-12-27	$307,000
6608574	Device, system, and method for compensating for isolation and cable delays in an SSI encoder interface circuit	—	2003-08-19	$474,000
6407917	Fluid flow management system	Thomas F. Craft, Jr., Steven Smith, Dinh G. Lai, Dianne S. Wolpensinger	2002-06-18	$9,875,000
6298568	Feeler gage alignment tool	David John Pongracz, Nancy Susan Rush	2001-10-09	$19,812,000
6067229	Heat dissipating enclosure for electronic components	Edward Morrell	2000-05-23	$100,087,000
5746459	Power door latch method and apparatus	William H. Giroux, Jr.	1998-05-05
5538119	Synchronizing arrangement with torque lock feature	—	1996-07-23	$2,354,000
5458388	Replaceable nozzle tip with vacuum actuated mechanical gripping fingers	John Edward Danek	1995-10-17
5335898	Apparatus and method for clamping structural members during joinder	—	1994-08-09

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Charles E. Johnson — 31 Patents

Issued Patents All Time

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