Chellappan Narayanan — 12 Patents at AT&T

Chellappan Narayanan has been granted 12 US patents while listed as an inventor at AT&T. The first was granted in 1996 and the most recent in January 2024. Chellappan Narayanan ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Chellappan Narayanan in Morristown, NJ, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
11880067	Integrated environmentally insensitive modulator for interferometric gyroscopes	Jeffrey Earl Lewis, Matthew Wade Puckett, Neil A. Krueger	2024-01-23	$52,987,000
11294120	Integrated environmentally insensitive modulator for interferometric gyroscopes	Jeffrey Earl Lewis, Matthew Wade Puckett, Neil A. Krueger	2022-04-05	$74,735,000
10451421	Resonant fiber optical gyroscope using antiresonant nodeless fiber	Glen A. Sanders, Clarence E. Laskoskie, Lee K. Strandjord	2019-10-22	$23,457,000
9252559	Narrow bandwidth reflectors for reducing stimulated Brillouin scattering in optical cavities	Glen A. Sanders, Lee K. Strandjord, Jianfeng Wu	2016-02-02	$13,273,000
6442311	Optical device having modified transmission characteristics by localized thermal treatment	Giovanni Barbarossa	2002-08-27
6055976	Method of preparing end faces on integrated circuits	Scott T. Davies, Francis M. Mess	2000-05-02	$96,316,000
5980120	Fiber array test method and apparatus	—	1999-11-09	$66,231,000
5978539	Optical device having a temperature independent spectral response using nonplanar geometric distortion of a substrate	Scott T. Davies, Daren Li, Yuan Li, Kevin Sullivan, Jianluo Zhang	1999-11-02	$43,060,000
5796906	Optical planar waveguide notch filters	Herman M. Presby	1998-08-18	$68,439,000
5768457	Multilayered connector pads for supporting butt-joined optical arrays	Herman M. Presby	1998-06-16	$23,386,000
5768452	Radiolytic method for trimming planar waveguide couplers	Robert M. Atkins, Benjamin I. Greene, Herman M. Presby	1998-06-16	$23,386,000
5588085	Radiolytic method for making a mode-field transforming optical waveguide	Benjamin I. Greene, Herman M. Presby	1996-12-24	$56,930,000

Chellappan Narayanan — 12 Patents

Issued Patents All Time

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