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Automotive · Business & technology

AutoTechLedger

The money-and-markets desk of automotive technology. Every story reads the sector through SEC filings — guidance, capex, recalls, and EV-credit accounting — grounded in primary documents, not press releases.

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SEC · IPFilings & patents

Latest Articles

24 articles indexed

Automotive

GM's Aug. 13 Filings Split Battery Safety Into Heat Routing and Cell Isolation

Two applications published the same day address different layers of pack risk: moving heat through the assembly and switching a hot cell out of the current path.

By Imani Brooks · Aug 13, 2026 · Patent record

Automotive

Black Paint a Sensor Can See: Mapping a 32-Grant Issue Day

Toyota entities received 32 U.S. patents on August 4. The one that resolves a real conflict is a pigment that stays black to the eye while reflecting most of the near-IR that lidar depends on.

By Imani Brooks · Aug 4, 2026 · Patent record

Automotive

A patent that starts by admitting the chip is bent

Most joining patents assume a flat die. This one issued on 28 July with warpage written into the independent claims as a given, and builds the joint around it.

By Imani Brooks · Jul 28, 2026 · Patent record

Automotive

The car books its own service appointment

A published application grades steering degradation into three bands, one of which quietly compensates and one of which raises a service notification. That is a warranty mechanism described in claim language.

By Wendell Park · Jul 23, 2026 · Patent record

Automotive

Toyota's Solid-State Application Puts the Engineering Work Inside the Anode

A battery application published July 16 is directed to a double-sided solid-state stack in which the electrolyte content of the anode layer varies through its thickness. The claim structure, and a manufacturing method built on layer transfer, suggest where Toyota is pointing its cell-development effort.

By Imani Brooks · Jul 21, 2026 · Patent record

Automotive

A Charging Filing That Reads Like a Service Business, Not a Hardware One

Newly published Hyundai applications describe a server that dispatches one EV to charge another and settles the transaction — price fields, fee estimates, and logistics classifications included. The signal is a move toward charging as a dispatched, billable service.

By Imani Brooks · Jul 2, 2026 · Patent record

Automotive

Xos Files for an At-the-Market Stock Sale of Up to $8.78 Million

The electric commercial-truck maker registered an at-the-market common-stock program through Roth Capital Partners, disclosing $1.14 per share of dilution to new investors and proceeds earmarked for working capital and debt servicing.

By Imani Brooks · Jun 23, 2026 · SEC

Automotive

Hyundai's June Pub Drop Concentrates on the Battery Pack's Nervous System

Among more than a hundred Hyundai applications published June 18, a tight cluster of battery cell-monitoring, overstress-protection and wireless management filings points to where the company has been directing pack-level R&D — the electronics that watch the cells, not the cells themselves.

By Imani Brooks · Jun 18, 2026 · Patent record