John Evan Johnson — 11 Patents at AT&T

John Evan Johnson has been granted 11 US patents while listed as an inventor at AT&T. The first was granted in 1998 and the most recent in March 2005. John Evan Johnson ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list John Evan Johnson in New Providence, NJ, US.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6862394	Wavelength tunable laser and method of formation	David Alan Ackerman, David V. Lang, C. Lewis Reynolds, Jr.	2005-03-01	$1,926,000
6829262	Aging in tunable semiconductor lasers	David Alan Ackerman, Sung-Nee George Chu, Eric J. Dean, Leonard Jan-Peter Ketelsen, Liming Zhang	2004-12-07	$3,915,000
6453105	Optoelectronic device with power monitoring tap	Kishore Kamath	2002-09-17
6408014	Apparatus and method for stabilizing the frequency of a light source	David Alan Ackerman	2002-06-18
6275317	Hybrid integration of a wavelength selectable laser source and optical amplifier/modulator	Christopher Doerr, Charles H. Joyner, Leonard Jan-Peter Ketelsen, Uziel Koren, Dirk Joachim Muehlner +2 more	2001-08-14	$6,042,000
6265237	In-wafer testing of DFB semiconductor lasers	William R. Heffner	2001-07-24	$18,571,000
6233082	Optical transmitter for WDM systems	—	2001-05-15	$37,602,000
6162655	Method of fabricating an expanded beam optical waveguide device	Leonard Jan-Peter Ketelsen, Janet L. Lentz, Charles H. Joyner, Sharon K. Sputz	2000-12-19	$26,094,000
6028881	Wavelength selectable laser source	David Alan Ackerman	2000-02-22	$68,300,000
5832014	Wavelength stabilization in tunable semiconductor lasers	—	1998-11-03	$52,628,000
5719931	Access code dialing apparatus and method	—	1998-02-17	$13,939,000

John Evan Johnson — 11 Patents

Issued Patents All Time

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