Honeywell built its business on industrial control systems, so when it files on battery-storage control, that is an incumbent extending a familiar playbook to a new asset. US20230396067A1, published December 7, 2023, describes control of battery energy storage systems.
The CPC tags are storage-operations standard: H02J 3/32 (battery use in networks), H02J 7/0068 (battery protection), H02J 7/00712 (charge/discharge control). This is the operational brain of a grid-scale battery — the system that decides when to charge, when to discharge, how to protect the cells, and how to balance the pack.
Mapping to the grid: a utility-scale BESS is only as good as its control system. The hardware (cells, inverters) is increasingly commoditized; the value and the reliability live in the operations layer that dispatches the battery against grid signals and market prices while keeping it safe and healthy. Honeywell is fencing IP on exactly that layer.
The patent-versus-product point: this is a published application claiming a control system, not a deployed product. It tells us where Honeywell is trying to fence — the BESS operations layer — not what it has shipped. For an industrial-controls firm, the strategy is recognizable: own the control IP and supply it across many third-party battery installations.
From patent to grid, the significance is the entrant. The grid-storage IP landscape started with battery and inverter makers; by 2023 industrial-controls incumbents like Honeywell are moving in on the operations layer, the same way software firms and utilities moved in on distribution control. The pattern across the mid-2020s is consistent: as the grid's value migrates to control and software, every category of incumbent files to claim its slice.