Issued Patents All Time
Showing 25 most recent of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12323231 | Routing and regenerator planning in a carrier's core reconfigurable optical network | Balagangadhar Bathula, Rakesh Sinha, Sheryl Leigh Woodward | 2025-06-03 |
| 11552723 | Routing and regenerator planning in a carrier's core reconfigurable optical network | Balagangadhar Bathula, Rakesh Sinha, Sheryl Leigh Woodward | 2023-01-10 |
| 11349566 | Reachability determination in wavelength division multiplexing network based upon fiber loss measurements | Sheryl Leigh Woodward, Kathleen Tse, Martin Birk, Balagangadhar Bathula | 2022-05-31 |
| 11032003 | Reachability determination in wavelength division multiplexing network based upon fiber loss measurements | Sheryl Leigh Woodward, Kathleen Tse, Martin Birk, Balagangadhar Bathula | 2021-06-08 |
| 10554301 | Reachability determination in wavelength division multiplexing network based upon fiber loss measurements | Sheryl Leigh Woodward, Kathleen Tse, Martin Birk, Balagangadhar Bathula | 2020-02-04 |
| 10491546 | Provider edge router system and provider edge router system controller for hybrid virtualization of provider edge router functions | Vijay Gopalakrishnan, Oliver Spatscheck, Chengwei Wang, Yang Xu | 2019-11-26 |
| 10432342 | Routing and regenerator planning in a carrier's core reconfigurable optical network | Balagangadhar Bathula, Rakesh Sinha, Sheryl Leigh Woodward | 2019-10-01 |
| 10200121 | Reachability determination in wavelength division multiplexing network based upon fiber loss measurements | Sheryl Leigh Woodward, Kathleen Tse, Martin Birk, Balagangadhar Bathula | 2019-02-05 |
| 10171197 | Method and apparatus for routing traffic using asymmetrical optical connections | Balagangadhar Bathula, Mark David Feuer, Rakesh Sinha, John Lester Strand, Sheryl Leigh Woodward +1 more | 2019-01-01 |
| 10148349 | Joint IP/optical layer restoration after a router failure | John Lester Strand | 2018-12-04 |
| 9735912 | Method and apparatus for routing traffic using asymmetrical optical connections | Balagangadhar Bathula, Mark David Feuer, Rakesh Sinha, John Lester Strand, Sheryl Leigh Woodward +1 more | 2017-08-15 |
| 9705590 | Joint IP/optical layer restoration after a router failure | John Lester Strand | 2017-07-11 |
| 9413640 | Method and apparatus for routing traffic using asymmetrical optical connections | Balagangadhar Bathula, Mark David Feuer, Rakesh Sinha, John Lester Strand, Sheryl Leigh Woodward +1 more | 2016-08-09 |
| 9264344 | Method and apparatus for providing a route recommendation | Guangzhi Li, Chris Dailey, Robert Duncan Doverspike, Monica Naukam Gerhardstein, Dah-Min David Hwang +2 more | 2016-02-16 |
| 9246623 | Method and apparatus for routing traffic using asymmetrical optical connections | Balagangadhar Bathula, Mark David Feuer, Rakesh Sinha, John Lester Strand, Sheryl Leigh Woodward +1 more | 2016-01-26 |
| 9042720 | Joint IP/optical layer restoration after a router failure | John Lester Strand | 2015-05-26 |
| 8989018 | Method and apparatus for providing a route recommendation | Guangzhi Li, Chris Dailey, Robert Duncan Doverspike, Monica Naukam Gerhardstein, Dah-Min David Hwang +2 more | 2015-03-24 |
| 8897641 | Reachability matrices spanning multiple domains in an optical network | Robert Duncan Doverspike, Guangzhi Li, Monica Naukam Gerhardstein, Yici Guo, Dongmei Wang +1 more | 2014-11-25 |
| 8687956 | Standby restoration signaling for optical networks | Guangzhi Li, Robert Duncan Doverspike, John Lester Strand | 2014-04-01 |
| 8515280 | Physically-diverse routing in heterogeneous optical networks | Guangzhi Li, Chris Dailey, Robert Duncan Doverspike, Monica Naukam Gerhardstein, Dongmei Wang +1 more | 2013-08-20 |
| 8452176 | Reachability matrices spanning multiple domains in an optical network | Robert Duncan Doverspike, Guangzhi Li, Monica Naukam Gerhardstein, Yici Guo, Dongmei Wang +1 more | 2013-05-28 |
| 8260133 | Standby restoration signaling for optical networks | Guangzhi Li, Robert Duncan Doverspike, John Lester Strand | 2012-09-04 |
| 8195048 | Optical transport system architecture for remote terminal connectivity | Michael Eiselt, Jay Wiesenfeld, Lara Denise Garrett, Mark Shtaif | 2012-06-05 |
| 8150257 | Shared mesh restoration with pre-configured standby lightpaths | Gagan Choudhury, Robert Duncan Doverspike, Guangzhi Li, John Lester Strand | 2012-04-03 |
| 7948899 | Method and apparatus for communications traffic engineering | Seyhan Civanlar, Leonard L. Lu, Zhuangbo Tang | 2011-05-24 |