SRIDHAR; Balakrishnan

Patent Applications and Registrations

Patent applications and USPTO patent grants for SRIDHAR; Balakrishnan.The latest application filed is for "physical-layer security for coherent communications system".

Company Profile

3.36.22

SRIDHAR; Balakrishnan - Ellicott City MD
Sridhar; Balakrishnan - Elliot City MD US
Sridhar; Balakrishnan - Elkridge MD
Sridhar; Balakrishnan - Silver Spring MD

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Physical-Layer Security for Coherent Communications System App 20200162172 - SRIDHAR; Balakrishnan ; et al.	2020-05-21
Raman amplifier system and method with integrated optical time domain reflectometer Grant 10,374,704 - Archambault , et al.	2019-08-06
Four-wave mixing reduction due to raman pumps in optical communication systems Grant 10,263,386 - Sridhar , et al.	2019-04-16
Systems and methods for modular deployment and upgrade of multiple optical spectrum bands in optical transmission systems Grant 10,237,633 - Chedore , et al.	2019-03-19
Systems And Methods For Modular Deployment And Upgrade Of Multiple Optical Spectrum Bands In Optical Transmission Systems App 20180234749 - CHEDORE; Paul ; et al.	2018-08-16
Raman Amplifier System And Method With Integrated Optical Time Domain Reflectometer App 20180019813 - ARCHAMBAULT; Jean-Luc ; et al.	2018-01-18
Raman amplifier system and method with integrated optical time domain reflectometer Grant 9,793,986 - Archambault , et al. October 17, 2	2017-10-17
Raman Amplifier System And Method With Integrated Optical Time Domain Reflectometer App 20150381274 - ARCHAMBAULT; Jean-Luc ; et al.	2015-12-31
Raman amplifier system and method with integrated optical time domain reflectometer Grant 9,148,710 - Archambault , et al. September 29, 2	2015-09-29
Differentiation of power and channel count changes in optically amplified links Grant 9,065,247 - Frankel , et al. June 23, 2	2015-06-23
Raman amplifier gain compression systems and methods based on signal power monitoring Grant 8,885,248 - Bao , et al. November 11, 2	2014-11-11
Extended dynamic range optical amplifier Grant 8,873,135 - Sridhar , et al. October 28, 2	2014-10-28
Optical service channel systems and methods over high loss links Grant 8,867,912 - Sridhar , et al. October 21, 2	2014-10-21
Extended Dynamic Range Optical Amplifier App 20140177037 - SRIDHAR; Balakrishnan ; et al.	2014-06-26
Raman Amplifier Gain Compression Systems And Methods Based On Signal Power Monitoring App 20140104679 - Bao; Jun ; et al.	2014-04-17
Raman Amplifier System And Method With Integrated Optical Time Domain Reflectometer App 20140077971 - Archambault; Jean-Luc ; et al.	2014-03-20
Optical Service Channel Systems And Methods Over High Loss Links App 20140072306 - Sridhar; Balakrishnan ; et al.	2014-03-13
Wavelength-switched optical add-drop multiplexer with wavelength broadcasting capability Grant 8,625,993 - Bhatnagar , et al. January 7, 2	2014-01-07
Dispersion slope compensation and dispersion map management systems and methods Grant 8,606,108 - Sridhar December 10, 2	2013-12-10
Differentiation Of Power And Channel Count Changes In Optically Amplified Links App 20130148192 - FRANKEL; Michael Y. ; et al.	2013-06-13
Differentiation of power and channel count changes in optically amplified links Grant 8,373,926 - Frankel , et al. February 12, 2	2013-02-12
Dispersion Slope Compensation And Dispersion Map Management Systems And Methods App 20100329695 - SRIDHAR; Balakrishnan	2010-12-30
Systems and methods for adaptive gain control to compensate OSNR penalty caused by side-lobe of MEMS-based reconfigurable optical add-drop multiplexers Grant 7,826,748 - Yang , et al. November 2, 2	2010-11-02
Multi-channel protection switching systems and methods for increased reliability and reduced cost Grant 7,634,194 - Frankel , et al. December 15, 2	2009-12-15
Wavelength-switched Optical Add-drop Multiplexer With Wavelength Broadcasting Capability App 20090175620 - Bhatnagar; Vipul ; et al.	2009-07-09
Systems and methods for adaptive gain control to compensate OSNR penalty caused by side-lobe of MEMS-based reconfigurable optical add-drop multiplexers App 20090116841 - Yang; Xiaohui ; et al.	2009-05-07
Bidirectional communication system Grant 7,512,343 - Sridhar , et al. March 31, 2	2009-03-31
Method and apparatus for optical amplifying device gain control with gain threshold Grant 7,400,443 - Sridhar , et al. July 15, 2	2008-07-15
Optical amplifier pre-emphasis and equalization method and optical communications system incorporating same Grant 7,369,300 - Sridhar , et al. May 6, 2	2008-05-06
Optical amplifier pre-emphasis and equalization method and optical communications system incorporating same App 20080018990 - Sridhar; Balakrishnan ; et al.	2008-01-24
Multi-channel protection switching systems and methods for increased reliability and reduced cost App 20070280681 - Frankel; Michael Y. ; et al.	2007-12-06
Optical communication system having dynamic gain equalization Grant 7,092,148 - Haggans , et al. August 15, 2	2006-08-15
Optical communication system having dynamic gain equalization Grant 7,075,711 - Haggans , et al. July 11, 2	2006-07-11
Differentiation of power and channel count changes in optically amplified links App 20060139742 - Frankel; Michael Y. ; et al.	2006-06-29
Bidirectional communication system App 20060023754 - Sridhar; Balakrishnan ; et al.	2006-02-02
Power balanced optical add multiplexer and power balancing methods therefore Grant 6,904,241 - DeGrange, Jr. , et al. June 7, 2	2005-06-07
Three-stage optical amplifier having flat spectral gain Grant 6,900,931 - Sridhar , et al. May 31, 2	2005-05-31
Optical communication system having dynamic gain equalization App 20050094252 - Haggans, Charles W. ; et al.	2005-05-05
Power balanced optical add/drop multiplexer and power balancing methods therefore Grant 6,885,825 - DeGrange, Jr. , et al. April 26, 2	2005-04-26
Optical supervisory channel apparatus and method for measuring optical properties Grant 6,765,659 - Bhatnagar , et al. July 20, 2	2004-07-20
Method and system for controlling Raman gain flatness sensitivity to pump laser wavelength variation Grant 6,525,870 - Cho , et al. February 25, 2	2003-02-25
Power balanced optical add/drop multiplexer and power balancing methods therefore App 20020105694 - DeGrange, James E. JR. ; et al.	2002-08-08
Power balanced optical add multiplexer and power balancing methods therefore App 20020105695 - DeGrange, James E. JR. ; et al.	2002-08-08
Optical amplifier having a substantially flat gain spectrum Grant 6,204,958 - Taylor , et al. March 20, 2	2001-03-20
Optical amplifier having an improved noise figure Grant 6,178,038 - Taylor , et al. January 23, 2	2001-01-23
Optical amplifier having a variable attenuator controlled based on input power Grant 6,061,171 - Taylor , et al. May 9, 2	2000-05-09
Optical amplifier having substantially uniform spectral gain Grant 6,057,959 - Taylor , et al. May 2, 2	2000-05-02
Optical amplifier having first and second stages and an attenuator controlled based on the gains of the first and second stages Grant 6,049,413 - Taylor , et al. April 11, 2	2000-04-11
Optical add-drop multiplexers for WDM optical communication systems Grant 5,778,118 - Sridhar July 7, 1	1998-07-07

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.