| Utility: Self-optimizing fabric architecture and self-assembling network Filling date: 5 Sep 2025 Issue date: 10 Mar 2022 | 19 Nov 2021 | 10 Mar 2022 |
| Utility: Learning Alarm and PM threshold values in network elements based on actual operating conditions Filling date: 5 Sep 2025 Issue date: 10 Mar 2022 | 19 Nov 2021 | 10 Mar 2022 |
| Utility: Resonant device improvement in PICs using spare devices to reduce power requirements Filling date: 5 Sep 2025 Issue date: 10 Mar 2022 | 1 Sep 2021 | 10 Mar 2022 |
| Utility: Angled Faceplates for a network element Filling date: 5 Sep 2025 Issue date: 10 Mar 2022 | 10 Sep 2020 | 10 Mar 2022 |
| Utility: Configuring an API to provide customized access constraints Filling date: 5 Sep 2025 Issue date: 10 Mar 2022 | 9 Sep 2020 | 10 Mar 2022 |
| Utility: Stress Compensating Pick-up Tool Filling date: 5 Sep 2025 Issue date: 10 Mar 2022 | 9 Sep 2020 | 10 Mar 2022 |
| Utility: Integrated band splitter for scaling dual-band ROADM Filling date: 5 Sep 2025 Issue date: 8 Mar 2022 | 29 Mar 2021 | 8 Mar 2022 |
| Utility: Programmatically configured switches and distributed buffering across fabric interconnect Filling date: 5 Sep 2025 Issue date: 8 Mar 2022 | 28 Jul 2020 | 8 Mar 2022 |
| Utility: Resolving label depth and protection in segment routing Filling date: 5 Sep 2025 Issue date: 8 Mar 2022 | 21 Feb 2020 | 8 Mar 2022 |
| Utility: Systems and methods for proactive network operations Filling date: 5 Sep 2025 Issue date: 8 Mar 2022 | 7 Aug 2019 | 8 Mar 2022 |
| Utility: ESTIMATION OF COMMUNICATION SYSTEM IMPAIRMENTS USING SPECTRALLY SELECTIVE SIGNAL PERTURBATIONS Filling date: 5 Sep 2025 Issue date: 3 Mar 2022 | 27 Aug 2021 | 3 Mar 2022 |
| Utility: Virtual hallway conversations for remote collaboration Filling date: 5 Sep 2025 Issue date: 3 Mar 2022 | 17 Aug 2021 | 3 Mar 2022 |
| Utility: Systems and methods for constrained path computation in networks with connectivity and resource availability rules Filling date: 5 Sep 2025 Issue date: 3 Mar 2022 | 12 Oct 2020 | 3 Mar 2022 |
| Utility: Characterizing Integrated Photonics Devices Filling date: 5 Sep 2025 Issue date: 3 Mar 2022 | 3 Sep 2020 | 3 Mar 2022 |
| Utility: Managing Detection Region Spacing in an Integrated Photodetector Filling date: 5 Sep 2025 Issue date: 3 Mar 2022 | 3 Sep 2020 | 3 Mar 2022 |
| Utility: Per-band fault signaling in a multi-band optical transmission system Filling date: 5 Sep 2025 Issue date: 3 Mar 2022 | 26 Aug 2020 | 3 Mar 2022 |
| Utility: Probabilistic Constellation Shaping of Multi-Dimensional Symbols for Improved Tolerance to Nonlinear Impairments Filling date: 5 Sep 2025 Issue date: 3 Mar 2022 | 11 Oct 2019 | 3 Mar 2022 |
| Utility: Utilizing images to evaluate the status of a network system Filling date: 5 Sep 2025 Issue date: 24 Feb 2022 | 2 Sep 2021 | 24 Feb 2022 |
| Utility: Optical time-domain reflectometer interoperable trunk switch Filling date: 5 Sep 2025 Issue date: 22 Feb 2022 | 14 Aug 2020 | 22 Feb 2022 |
| Utility: Flexible traffic control for EVPN Filling date: 5 Sep 2025 Issue date: 17 Feb 2022 | 29 Sep 2020 | 17 Feb 2022 |
| Utility: Enhancement to the IS-IS protocol for eliminating unwanted network traffic Filling date: 5 Sep 2025 Issue date: 15 Feb 2022 | 15 May 2019 | 15 Feb 2022 |
| Utility: Apparatus and methods for high frequency clock generation Filling date: 5 Sep 2025 Issue date: 8 Feb 2022 | 16 Dec 2020 | 8 Feb 2022 |
| Utility: Programmatically configured switches and distributed buffering across fabric interconnect Filling date: 5 Sep 2025 Issue date: 3 Feb 2022 | 28 Jul 2020 | 3 Feb 2022 |
| Utility: Shared risk representation in networks for troubleshooting, assignment, and propagation across layers Filling date: 5 Sep 2025 Issue date: 1 Feb 2022 | 8 Jan 2020 | 1 Feb 2022 |
| Utility: Spectrum coordination in optical line protection to minimize optical transceiver retuning Filling date: 5 Sep 2025 Issue date: 27 Jan 2022 | 3 Sep 2020 | 27 Jan 2022 |
| Utility: Managing Adhesive Curing for Photonic System Assembly Filling date: 5 Sep 2025 Issue date: 27 Jan 2022 | 22 Jul 2020 | 27 Jan 2022 |
| Utility: Systems and methods for achieving best effort home route capacity on protection paths during optical restoration Filling date: 5 Sep 2025 Issue date: 27 Jan 2022 | 11 Oct 2019 | 27 Jan 2022 |
| Utility: Phase skipping technique for high-speed, high-phase number delay locked loop Filling date: 5 Sep 2025 Issue date: 25 Jan 2022 | 10 May 2021 | 25 Jan 2022 |
| Utility: Packet processing framework Filling date: 5 Sep 2025 Issue date: 25 Jan 2022 | 28 Oct 2016 | 25 Jan 2022 |
| Utility: Managing trench depth in integrated systems Filling date: 5 Sep 2025 Issue date: 18 Jan 2022 | 10 Jun 2020 | 18 Jan 2022 |
| Utility: Free-carrier absorption variable optical attenuators and thermal phase shifters formed by an optical waveguide having multiple passes in an intrinsic region Filling date: 5 Sep 2025 Issue date: 18 Jan 2022 | 19 Jul 2019 | 18 Jan 2022 |
| Utility: In-service software upgrade systems and methods utilizing two router processors in a network element Filling date: 5 Sep 2025 Issue date: 13 Jan 2022 | 19 Aug 2020 | 13 Jan 2022 |
| Utility: Automatically upgrading a license to reduce traffic interruptions within a network Filling date: 5 Sep 2025 Issue date: 13 Jan 2022 | 19 Aug 2020 | 13 Jan 2022 |
| Utility: Re-calibrating an in-service optical multiplex section (OMS) Filling date: 5 Sep 2025 Issue date: 11 Jan 2022 | 22 Dec 2020 | 11 Jan 2022 |
| Utility: Differential clock recovery using a global reference time Filling date: 5 Sep 2025 Issue date: 11 Jan 2022 | 24 Aug 2020 | 11 Jan 2022 |
| Utility: Thermal control system with passive thermostatic actuators for passive thermal management of pluggable optics in an optical telecom platform Filling date: 5 Sep 2025 Issue date: 11 Jan 2022 | 15 Oct 2019 | 11 Jan 2022 |
| Utility: Proactively detecting failures on restoration paths in an optical network and visualizations thereof Filling date: 5 Sep 2025 Issue date: 6 Jan 2022 | 1 Jul 2021 | 6 Jan 2022 |
| Utility: Apparatus and methods for digital fractional phase locked loop with a current mode low pass filter Filling date: 5 Sep 2025 Issue date: 4 Jan 2022 | 23 Nov 2020 | 4 Jan 2022 |
| Utility: Printed circuit boards and methods for manufacturing thereof for RF connectivity between electro-optic phase modulator and Digital Signal Processor Filling date: 5 Sep 2025 Issue date: 4 Jan 2022 | 2 Jun 2020 | 4 Jan 2022 |
| Utility: Populating capacity-limited forwarding tables in routers to maintain loop-free routing Filling date: 5 Sep 2025 Issue date: 4 Jan 2022 | 28 Apr 2020 | 4 Jan 2022 |
| Utility: Managing stray light absorption in integrated photonics devices Filling date: 5 Sep 2025 Issue date: 4 Jan 2022 | 14 Jan 2020 | 4 Jan 2022 |
| Utility: Reinforcement learning for autonomous telecommunications networks Filling date: 5 Sep 2025 Issue date: 30 Dec 2021 | 9 Sep 2021 | 30 Dec 2021 |
| Utility: Management interface handler to expedite module boot time in pluggable optical modules Filling date: 5 Sep 2025 Issue date: 30 Dec 2021 | 19 Aug 2021 | 30 Dec 2021 |
| Utility: Carrying a timestamp in radio over ethernet Filling date: 5 Sep 2025 Issue date: 28 Dec 2021 | 24 Aug 2020 | 28 Dec 2021 |
| Utility: Integrated polarimeter in an optical line system Filling date: 5 Sep 2025 Issue date: 28 Dec 2021 | 17 Jul 2020 | 28 Dec 2021 |
| Utility: Scaling operations, administration, and maintenance sessions in packet networks Filling date: 5 Sep 2025 Issue date: 21 Dec 2021 | 30 Sep 2019 | 21 Dec 2021 |
| Utility: HIGH BANDWIDTH UNDER-SAMPLED SUCCESSIVE APPROXIMATION REGISTER ANALOG TO DIGITAL CONVERTER WITH NONLINEARITY MINIMIZATION Filling date: 5 Sep 2025 Issue date: 16 Dec 2021 | 29 Mar 2021 | 16 Dec 2021 |
| Utility: Scalable OSPF configuration for managing optical networks Filling date: 5 Sep 2025 Issue date: 16 Dec 2021 | 16 Feb 2021 | 16 Dec 2021 |
| Utility: ECMP fast convergence on path failure using objects in a switching circuit Filling date: 5 Sep 2025 Issue date: 16 Dec 2021 | 16 Jun 2020 | 16 Dec 2021 |
| Utility: Highly linear phase rotators with continuous rotation Filling date: 5 Sep 2025 Issue date: 14 Dec 2021 | 8 Sep 2020 | 14 Dec 2021 |
