James Koehler — 9 Patents at Comcast

James Koehler has been granted 9 US patents while listed as an inventor at Comcast. The first was granted in 1991 and the most recent in February 2014. James Koehler ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list James Koehler in Montréal, QC, CA.

Patents per Year

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
8654485	Electronic ballast with protected analog dimming control interface	—	2014-02-18
8564216	Asymmetric end-of-life protection circuit for fluorescent lamp ballasts	Giovanni Gallegos	2013-10-22
8405488	System and method for encoding ballast control signals	Henry W. Jacobs, John J. Dernovsek	2013-03-26	$78,000
7926688	Tension-controlled web processing machine and method	Louis Dupuis, Ross Hoge	2011-04-19
7843145	System and method for power line carrier communication using high frequency tone bursts	Philip McKenzie	2010-11-30	$134,000
6619206	Method and apparatus for maintaining ink level in ink fountain of printing press	—	2003-09-16
6401612	Method and apparatus for maintaining ink level in ink fountain of printing press	—	2002-06-11
6397745	Method and apparatus for maintaining ink level in ink fountain of printing press	—	2002-06-04
5046418	Dampening method and apparatus for automatic ink/water control for lithographic printing press	David W. Paularena, Richard G. McCaffrey	1991-09-10

James Koehler — 9 Patents

Patents per Year

Issued Patents All Time

Patent Widget