Debris removal one object at a time is a losing economic proposition: a whole spacecraft and launch to deorbit a single dead satellite. US12234043B2, granted to Astroscale Holdings Inc. on February 25, 2025, attacks that math, claiming a "method and system for multi-object space debris removal."
The CPC is debris-removal-specific and dense: B64G 1/646 (docking/capture), B64G 1/1078 and 1/1081 (in-orbit operations and large structures), B64G 1/242 / 1/2427 (attitude control by thrusters), B64G 1/62 (re-entry/deorbit), and B64G 1/645 / 1/66 (auxiliary arrangements). The combination spans the full capture-relocate-deorbit cycle, repeated.
The mechanism is sequencing captures. A single servicer carries enough propellant and capability to rendezvous with a debris object, capture it, move it toward disposal, release or deorbit it, and then transit to the next target. The hard parts are the mission design and propellant budgeting that make several captures from one vehicle feasible, plus a capture mechanism robust enough to grab multiple, differently shaped, tumbling objects.
Astroscale extended this into a clear family — US12391411B2 (August 2025) carries the same multi-object title forward, and US12479603B2 (November 2025) adds capture of tumbling objects specifically. Filing velocity across the capture problem is intent: the company is fencing the operational approach, not just a gripper.
The discipline this desk insists on: a granted method-and-system claim protects Astroscale's specific multi-object approach, not the concept of debris removal, and it is not proof of a demonstrated multi-capture mission. Debris removal remains a strategically vital but commercially unproven whitespace. The record's value is in mapping how the leading pure-play intends to make the economics work — by amortizing one expensive vehicle across many targets.