| Utility: Traffic Engineering attribute for avoiding packet paths with signal degrade Filling date: 5 Sep 2025 Issue date: 21 May 2020 | 3 Jan 2019 | 21 May 2020 |
| Utility: Control and data plane synchronization during Make Before Break operations in Multiprotocol Label Switching Filling date: 5 Sep 2025 Issue date: 21 May 2020 | 2 Jan 2019 | 21 May 2020 |
| Utility: Physical-Layer Security for Coherent Communications System Filling date: 5 Sep 2025 Issue date: 21 May 2020 | 21 Nov 2018 | 21 May 2020 |
| Utility: Traffic Engineering for Border Gateway Protocol Filling date: 5 Sep 2025 Issue date: 21 May 2020 | 19 Nov 2018 | 21 May 2020 |
| Utility: Method to discover and control an amplifier's automatic gain control (AGC) loop bandwidth Filling date: 5 Sep 2025 Issue date: 19 May 2020 | 5 Jul 2018 | 19 May 2020 |
| Utility: Power management for network device line modules Filling date: 5 Sep 2025 Issue date: 14 May 2020 | 9 Dec 2019 | 14 May 2020 |
| Utility: Digital signature systems and methods for network path trace Filling date: 5 Sep 2025 Issue date: 12 May 2020 | 5 Apr 2017 | 12 May 2020 |
| Utility: Dynamic reservation protocol for 5G network slicing Filling date: 5 Sep 2025 Issue date: 7 May 2020 | 27 Dec 2019 | 7 May 2020 |
| Utility: Forward Error Correction with Outer Multi-Level Code and Inner Contrast Code Filling date: 5 Sep 2025 Issue date: 7 May 2020 | 30 Jul 2018 | 7 May 2020 |
| Utility: Compliant micro latch for high-speed signal sub-slot pluggable modules Filling date: 5 Sep 2025 Issue date: 28 Apr 2020 | 25 Sep 2018 | 28 Apr 2020 |
| Utility: Silicon-based modulator with different transition zone thicknesses Filling date: 5 Sep 2025 Issue date: 23 Apr 2020 | 29 Oct 2019 | 23 Apr 2020 |
| Utility: Systems and methods for distributing unused bandwidth of metered flows in an envelope based on weights Filling date: 5 Sep 2025 Issue date: 23 Apr 2020 | 30 Nov 2018 | 23 Apr 2020 |
| Utility: Systems and methods for service availability determination in packet networks Filling date: 5 Sep 2025 Issue date: 23 Apr 2020 | 29 Nov 2018 | 23 Apr 2020 |
| Utility: Optimized colorless, directionless, and contentionless ROADM in a module Filling date: 5 Sep 2025 Issue date: 21 Apr 2020 | 16 Oct 2018 | 21 Apr 2020 |
| Utility: Probabilistic Constellation Shaping of Multi-Dimensional Symbols for Improved Tolerance to Nonlinear Impairments Filling date: 5 Sep 2025 Issue date: 16 Apr 2020 | 11 Oct 2019 | 16 Apr 2020 |
| Utility: OPTIMIZED COLORLESS, DIRECTIONLESS, AND CONTENTIONLESS ROADM IN A MODULE Filling date: 5 Sep 2025 Issue date: 16 Apr 2020 | 16 Oct 2018 | 16 Apr 2020 |
| Utility: Multi-width waveguide including first and second waveguide regions of differing widths and heights for providing impedance matching to an integrated circuit Filling date: 5 Sep 2025 Issue date: 14 Apr 2020 | 14 Dec 2017 | 14 Apr 2020 |
| Utility: Network service pricing and resource management in a software defined networking environment Filling date: 5 Sep 2025 Issue date: 14 Apr 2020 | 13 Nov 2017 | 14 Apr 2020 |
| Utility: Network resource optimization based on time-varying traffic in optical networks Filling date: 5 Sep 2025 Issue date: 14 Apr 2020 | 18 Dec 2015 | 14 Apr 2020 |
| Utility: Optical amplifier signaling systems and methods for shutoff coordination and topology discovery Filling date: 5 Sep 2025 Issue date: 7 Apr 2020 | 18 Apr 2019 | 7 Apr 2020 |
| Utility: Hierarchical resource tree allocation Filling date: 5 Sep 2025 Issue date: 31 Mar 2020 | 11 Mar 2016 | 31 Mar 2020 |
| Utility: Scalable task scheduling systems and methods for cyclic interdependent tasks using semantic analysis Filling date: 5 Sep 2025 Issue date: 26 Mar 2020 | 8 Nov 2018 | 26 Mar 2020 |
| Utility: Compliant micro latch for high-speed signal sub-slot pluggable modules Filling date: 5 Sep 2025 Issue date: 26 Mar 2020 | 25 Sep 2018 | 26 Mar 2020 |
| Utility: Hardened optical platform with pluggable optics Filling date: 5 Sep 2025 Issue date: 26 Mar 2020 | 20 Sep 2018 | 26 Mar 2020 |
| Utility: Systems and methods for automated Maintenance End Point creation Filling date: 5 Sep 2025 Issue date: 26 Mar 2020 | 20 Sep 2018 | 26 Mar 2020 |
| Utility: Legacy Time Division Multiplexing (TDM) service support in a packet network and on a packet network element Filling date: 5 Sep 2025 Issue date: 19 Mar 2020 | 9 Sep 2019 | 19 Mar 2020 |
| Utility: Systems and methods for capturing packet loss and disruption duration information during service restoration Filling date: 5 Sep 2025 Issue date: 19 Mar 2020 | 1 Nov 2018 | 19 Mar 2020 |
| Utility: Receiver automatic gain control systems and methods for asymmetrical or unbalanced constellations Filling date: 5 Sep 2025 Issue date: 17 Mar 2020 | 4 Mar 2019 | 17 Mar 2020 |
| Utility: Systems and methods for compensating coherent optics delay asymmetry in a packet optical network Filling date: 5 Sep 2025 Issue date: 17 Mar 2020 | 23 Jul 2018 | 17 Mar 2020 |
| Utility: Systems and methods for automated feature selection and pattern discovery of multi-variate time-series Filling date: 5 Sep 2025 Issue date: 12 Mar 2020 | 10 Sep 2018 | 12 Mar 2020 |
| Utility: Fully differential traveling wave series push-pull Mach-Zehnder Modulator Filling date: 5 Sep 2025 Issue date: 12 Mar 2020 | 10 Sep 2018 | 12 Mar 2020 |
| Utility: Systems and methods for achieving best effort home route capacity on protection paths during optical restoration Filling date: 5 Sep 2025 Issue date: 10 Mar 2020 | 27 Nov 2018 | 10 Mar 2020 |
| Utility: Silicon photonics modulator using TM mode and with a modified rib geometry Filling date: 5 Sep 2025 Issue date: 5 Mar 2020 | 29 Aug 2019 | 5 Mar 2020 |
| Utility: Data path retention during control plane failures in a Multiprotocol Label Switching network Filling date: 5 Sep 2025 Issue date: 5 Mar 2020 | 15 Oct 2018 | 5 Mar 2020 |
| Utility: Optical power replacement for faulted spectrum in channel holder based optical links Filling date: 5 Sep 2025 Issue date: 5 Mar 2020 | 4 Sep 2018 | 5 Mar 2020 |
| Utility: Method and system of mitigating network attacks Filling date: 5 Sep 2025 Issue date: 3 Mar 2020 | 3 Jun 2016 | 3 Mar 2020 |
| Utility: Network architecture providing device identification and redirection using whitelisting traffic classification Filling date: 5 Sep 2025 Issue date: 27 Feb 2020 | 26 Jul 2019 | 27 Feb 2020 |
| Utility: OPTICAL MODULATOR AND OPTICAL MODULATOR DRIVER DEVICES AND METHODS UTILIZING INDEPENDENT ARM BIAS TO MITIGATE FABRICATION ERRORS Filling date: 5 Sep 2025 Issue date: 27 Feb 2020 | 24 Aug 2018 | 27 Feb 2020 |
| Utility: Data network and execution environment replication for network automation and network applications Filling date: 5 Sep 2025 Issue date: 27 Feb 2020 | 21 Aug 2018 | 27 Feb 2020 |
| Utility: Compensation of transmitter or receiver defects in an optical communications system Filling date: 5 Sep 2025 Issue date: 25 Feb 2020 | 23 Nov 2018 | 25 Feb 2020 |
| Utility: Virtualized sections for sectional control of optical links Filling date: 5 Sep 2025 Issue date: 20 Feb 2020 | 24 Oct 2019 | 20 Feb 2020 |
| Utility: Optical modulator robust to fabrication errors Filling date: 5 Sep 2025 Issue date: 20 Feb 2020 | 12 Apr 2018 | 20 Feb 2020 |
| Utility: Flexible ethernet encryption systems and methods Filling date: 5 Sep 2025 Issue date: 18 Feb 2020 | 24 Jan 2019 | 18 Feb 2020 |
| Utility: Coordinated and scheduled standards-based intervals in network elements Filling date: 5 Sep 2025 Issue date: 13 Feb 2020 | 16 Oct 2019 | 13 Feb 2020 |
| Utility: Systems and methods for mesh restoration in networks due to intra-node faults Filling date: 5 Sep 2025 Issue date: 11 Feb 2020 | 21 May 2018 | 11 Feb 2020 |
| Utility: Flexible grid optical spectrum transmitter, receiver, and transceiver Filling date: 5 Sep 2025 Issue date: 6 Feb 2020 | 15 Oct 2019 | 6 Feb 2020 |
| Utility: Zero touch provisioning script to provision network elements over unnumbered interfaces Filling date: 5 Sep 2025 Issue date: 6 Feb 2020 | 31 Jul 2018 | 6 Feb 2020 |
| Utility: Variable Spectral Efficiency Optical Modulation Schemes Filling date: 5 Sep 2025 Issue date: 30 Jan 2020 | 8 Oct 2019 | 30 Jan 2020 |
| Utility: Service synchronization in Retain Home Path scenarios in a control plane network Filling date: 5 Sep 2025 Issue date: 30 Jan 2020 | 10 Sep 2018 | 30 Jan 2020 |
| Utility: Systems and methods for sideline processing in a Virtual Network Function Filling date: 5 Sep 2025 Issue date: 30 Jan 2020 | 30 Jul 2018 | 30 Jan 2020 |
