| Utility: Loss-based wavelength meter Filling date: 6 Sep 2025 Issue date: 26 Aug 2021 | 24 Feb 2021 | 26 Aug 2021 |
| Utility: Phase clock performance improvement for a system embedded with GNSS receiver Filling date: 6 Sep 2025 Issue date: 26 Aug 2021 | 26 Feb 2020 | 26 Aug 2021 |
| Utility: Resolving label depth and protection in Segment Routing Filling date: 6 Sep 2025 Issue date: 26 Aug 2021 | 21 Feb 2020 | 26 Aug 2021 |
| Utility: Distributed Precision Time Protocol Transparent Clock Filling date: 6 Sep 2025 Issue date: 26 Aug 2021 | 21 Feb 2020 | 26 Aug 2021 |
| Utility: Switching a service path over to an alternative service path Filling date: 6 Sep 2025 Issue date: 19 Aug 2021 | 13 Feb 2020 | 19 Aug 2021 |
| Utility: Incorporating a Generic Associated Channel (G-ACh) header and channel-type for Connectivity Fault Management (CFM) packets over Multi-Protocol Label Switching (MPLS) Filling date: 6 Sep 2025 Issue date: 12 Aug 2021 | 23 Mar 2020 | 12 Aug 2021 |
| Utility: Identifying Border Gateway Protocol (BGP) anomalies at scale Filling date: 6 Sep 2025 Issue date: 12 Aug 2021 | 12 Feb 2020 | 12 Aug 2021 |
| Utility: Hardened optical platform with pluggable optics Filling date: 6 Sep 2025 Issue date: 5 Aug 2021 | 19 Apr 2021 | 5 Aug 2021 |
| Utility: Modular networking hardware platform Filling date: 6 Sep 2025 Issue date: 5 Aug 2021 | 31 Jan 2020 | 5 Aug 2021 |
| Utility: Constraint-based event-driven telemetry Filling date: 6 Sep 2025 Issue date: 5 Aug 2021 | 30 Jan 2020 | 5 Aug 2021 |
| Utility: EVPN VPWS FXC local switching connectivity Filling date: 6 Sep 2025 Issue date: 22 Jul 2021 | 22 Jan 2020 | 22 Jul 2021 |
| Utility: System-level optical amplifier efficiency performance metric Filling date: 6 Sep 2025 Issue date: 22 Jul 2021 | 17 Jan 2020 | 22 Jul 2021 |
| Utility: High performance and scalable multi-layer topology discovery systems and methods Filling date: 6 Sep 2025 Issue date: 15 Jul 2021 | 26 Feb 2020 | 15 Jul 2021 |
| Utility: Double-Blind Mating Pluggable-Modules Holder Filling date: 6 Sep 2025 Issue date: 8 Jul 2021 | 6 Jan 2020 | 8 Jul 2021 |
| Utility: Digital-to-Analog Converter and Generation of High-Bandwidth Analog Signals Filling date: 6 Sep 2025 Issue date: 8 Jul 2021 | 23 May 2019 | 8 Jul 2021 |
| Utility: Optical fiber characterization measurement systems and methods Filling date: 6 Sep 2025 Issue date: 8 Jul 2021 | 15 May 2019 | 8 Jul 2021 |
| Utility: FlexO/ZR subrating and partial survivability Filling date: 6 Sep 2025 Issue date: 24 Jun 2021 | 10 Mar 2021 | 24 Jun 2021 |
| Utility: Adaptive learning system utilizing reinforcement learning to tune hyperparameters in machine learning techniques Filling date: 6 Sep 2025 Issue date: 10 Jun 2021 | 9 Dec 2019 | 10 Jun 2021 |
| Utility: Systems and methods for increasing granularity and fan-out of electric circuits with co-packaged optical interfaces Filling date: 6 Sep 2025 Issue date: 10 Jun 2021 | 5 Dec 2019 | 10 Jun 2021 |
| Utility: Flexible Ethernet Operations, Administration, and Maintenance systems and methods Filling date: 6 Sep 2025 Issue date: 3 Jun 2021 | 17 Feb 2021 | 3 Jun 2021 |
| Utility: Managing Stray Light Absorption in Integrated Photonics Devices Filling date: 6 Sep 2025 Issue date: 3 Jun 2021 | 14 Jan 2020 | 3 Jun 2021 |
| Utility: Shared risk representation in networks for troubleshooting, assignment, and propagation across layers Filling date: 6 Sep 2025 Issue date: 27 May 2021 | 8 Jan 2020 | 27 May 2021 |
| Utility: Forecasting time-series data in a network environment Filling date: 6 Sep 2025 Issue date: 20 May 2021 | 19 Nov 2019 | 20 May 2021 |
| Utility: Fiber Management Sliding Tray System Filling date: 6 Sep 2025 Issue date: 20 May 2021 | 14 Nov 2019 | 20 May 2021 |
| Utility: Spectrum assignments for application throughout an optical network element in a flexible-channel configuration Filling date: 6 Sep 2025 Issue date: 20 May 2021 | 14 Nov 2019 | 20 May 2021 |
| Utility: Self-compressed YANG model Filling date: 6 Sep 2025 Issue date: 20 May 2021 | 14 Nov 2019 | 20 May 2021 |
| Utility: High-density network element cooling via unequipped pluggable optical module cages Filling date: 6 Sep 2025 Issue date: 6 May 2021 | 1 Nov 2019 | 6 May 2021 |
| Utility: Cooling multiple high-density network pluggable optical modules using a shared heat exchanger Filling date: 6 Sep 2025 Issue date: 6 May 2021 | 1 Nov 2019 | 6 May 2021 |
| Utility: Apparatus and Method for Driving an Optical Modulator with Independent Modulator Arm Bias Filling date: 6 Sep 2025 Issue date: 29 Apr 2021 | 5 Jan 2021 | 29 Apr 2021 |
| Utility: Permitted network risks in diverse route determinations Filling date: 6 Sep 2025 Issue date: 22 Apr 2021 | 22 Oct 2019 | 22 Apr 2021 |
| Utility: Spring-type latch for securing a networking module within a slot of a chassis Filling date: 6 Sep 2025 Issue date: 22 Apr 2021 | 21 Oct 2019 | 22 Apr 2021 |
| Utility: Routing tables for forwarding packets between switches in a data center network Filling date: 6 Sep 2025 Issue date: 22 Apr 2021 | 18 Oct 2019 | 22 Apr 2021 |
| Utility: Graph views and models for representing networks and associated inventory Filling date: 6 Sep 2025 Issue date: 22 Apr 2021 | 16 Oct 2019 | 22 Apr 2021 |
| Utility: Liquid cooling high-density pluggable modules for a network element Filling date: 6 Sep 2025 Issue date: 15 Apr 2021 | 15 Oct 2020 | 15 Apr 2021 |
| Utility: Apparatus and Methods for Digital Phase Locked Loop with Analog Proportional Control Function Filling date: 6 Sep 2025 Issue date: 15 Apr 2021 | 13 Jul 2020 | 15 Apr 2021 |
| Utility: Label Switched Path (LSP) protection across multiple domains of a Segment Routing (SR) network Filling date: 6 Sep 2025 Issue date: 15 Apr 2021 | 21 Nov 2019 | 15 Apr 2021 |
| Utility: Thermal Control System with Passive Thermostatic Actuators for Passive Thermal Management of Pluggable Optics in an Optical Telecom Platform Filling date: 6 Sep 2025 Issue date: 15 Apr 2021 | 15 Oct 2019 | 15 Apr 2021 |
| Utility: Adaptive network slicing via overlaying decomposition and inheritance Filling date: 6 Sep 2025 Issue date: 8 Apr 2021 | 8 Oct 2019 | 8 Apr 2021 |
| Utility: Learning Alarm and PM threshold values in network elements based on actual operating conditions Filling date: 6 Sep 2025 Issue date: 1 Apr 2021 | 11 Nov 2019 | 1 Apr 2021 |
| Utility: Optimizing Border Gateway Protocol (BGP) traffic using Reinforcement Learning Filling date: 6 Sep 2025 Issue date: 1 Apr 2021 | 30 Sep 2019 | 1 Apr 2021 |
| Utility: Unsupervised outlier detection in time-series data Filling date: 6 Sep 2025 Issue date: 25 Mar 2021 | 14 Aug 2019 | 25 Mar 2021 |
| Utility: Flexible grid optical spectrum transmitter, receiver, and transceiver Filling date: 6 Sep 2025 Issue date: 18 Mar 2021 | 30 Nov 2020 | 18 Mar 2021 |
| Utility: Flexible grid optical spectrum transmitter, receiver, and transceiver Filling date: 6 Sep 2025 Issue date: 18 Mar 2021 | 30 Nov 2020 | 18 Mar 2021 |
| Utility: Variable Spectral Efficiency Optical Modulation Schemes Filling date: 6 Sep 2025 Issue date: 18 Mar 2021 | 31 Jul 2020 | 18 Mar 2021 |
| Utility: SECONDARY SIDE HEATSINK TECHNIQUES FOR OPTICAL AND ELECTRICAL MODULES Filling date: 6 Sep 2025 Issue date: 18 Mar 2021 | 16 Sep 2019 | 18 Mar 2021 |
| Utility: Partial survivability for multi-carrier and multi-module optical interfaces Filling date: 6 Sep 2025 Issue date: 11 Mar 2021 | 3 Nov 2020 | 11 Mar 2021 |
| Utility: Packet order recovery in a programmable edge switch in a data center network Filling date: 6 Sep 2025 Issue date: 11 Mar 2021 | 10 Sep 2019 | 11 Mar 2021 |
| Utility: Flexible Ethernet over wireless links Filling date: 6 Sep 2025 Issue date: 11 Mar 2021 | 5 Sep 2019 | 11 Mar 2021 |
| Utility: Managing a distributed microservice architecture as a monolithic distribution Filling date: 6 Sep 2025 Issue date: 11 Mar 2021 | 5 Sep 2019 | 11 Mar 2021 |
| Utility: Flat, highly connected optical network for data center switch connectivity Filling date: 6 Sep 2025 Issue date: 25 Feb 2021 | 5 Nov 2020 | 25 Feb 2021 |
