A Robot Injuring a Worker During Autonomous Operation: Settlement, Trial, and Appeal Issues Explained

When an industrial robot injures a worker during autonomous operation, the injured worker's claim almost always splits in two: a workers' compensation claim against the employer, and a separate damages lawsuit against the robot's manufacturer or the integrator who installed it. That second suit is where real compensation lives, because workers' compensation is the exclusive remedy against an employer in most states, capping recovery at medical bills and a fraction of lost wages with nothing for pain and suffering.

The leading case of this type, *Holbrook v. Prodomax Automation Ltd.*, shows the path such claims actually take. It survived an exclusive-remedy challenge, reached trial, and then settled confidentially in the middle of trial — which is why appellate rulings on robot design defects are scarce and why the settlement stage, not the appeal stage, is where these cases are usually decided.

Official resources:

Read the official notice from Govinfo — Use this primary source to verify the official announcement.
Read the original research from CDC — Use this page to review the original research.

Why the Employer Is Usually Off the Table
What the Holbrook Case Establishes
Why There Is Almost No Appellate Law Here
The Standards That Decide Liability
When the Injury Happened Is Often the Whole Case
Practical Steps After a Robot Injury
Frequently Asked Questions

Why the Employer Is Usually Off the Table

"Exclusive remedy" means that by accepting workers' compensation coverage, an employee gives up the right to sue the employer in tort for a workplace injury. FindLaw's overview of the exclusive-remedy rule explains the trade: benefits come without proving fault, but they come without pain-and-suffering damages too. That leaves third parties. A robot injury typically involves several companies that are not the employer — the robot manufacturer, the cell integrator who designed the safety fencing and interlocks, the line builder, and sometimes a controls supplier.

Claims against them run on design defect, manufacturing defect, failure to warn, and breach of implied warranty, none of which exclusivity bars. The exception worth checking is corporate structure. In *Holbrook*, the federal court in Michigan refused to extend employer immunity to Flex-N-Gate, holding under the W.D. Michigan opinion that Flex-N-Gate and the actual employer, Ventra, were separate corporations rather than a single entity. Where a parent or affiliate claims to be the employer, corporate separateness becomes the first fight in the case.

What the Holbrook Case Establishes

Wanda Holbrook was a journeyman maintenance technician at a plant in Ventra Ionia, Michigan. In July 2015 she was killed when a robot entered the work area she was in. Her estate sued robot makers FANUC America, Nachi Robotic Systems and Lincoln Electric, along with integrator Prodomax and Flex-N-Gate, on negligence plus four product-liability counts, according to the federal court docket. The defendant list is the lesson.

A worker hurt by a robot rarely knows which company designed the guarding, which wrote the safety logic, and which signed off on the installed cell. Naming the manufacturer alone can miss the party whose decision actually caused the failure, and integrators are frequently the more exposed defendant because they own the as-installed configuration. The case reached trial and then stopped. Bloomberg Law reported that Holbrook settled confidentially with Prodomax midway through trial, and the docket was terminated on December 15, 2021.

Why There Is Almost No Appellate Law Here

Appeals require judgments, and confidential mid-trial settlements produce none. Because robot-injury cases of this profile mostly resolve without a public verdict, there is very little binding precedent setting the standard for a defective robot design. Each new case is largely built from scratch on expert testimony and the applicable safety standards rather than from a controlling opinion. That has two practical effects.

Valuation is harder, because there are few published comparable verdicts to anchor a demand. And defendants have a strong incentive to settle before a jury creates one — a published robot design-defect verdict would follow the manufacturer into every future case. A confidential settlement also means an injured worker cannot look up what a similar case was worth. The realistic benchmarks come from counsel's own experience and from the strength of the safety-standard evidence in the specific cell.

The Standards That Decide Liability

There is no OSHA standard written specifically for robots. After a robot injury, employer citations are typically issued under lockout/tagout (29 CFR 1910.147), machine guarding (1910.212), or Section 5(a)(1) — the General Duty Clause, which covers recognized hazards likely to cause death or serious physical harm. Those citations do not pay the worker, but they document the hazard. The industry standard fills the gap, and it just changed.

ANSI/A3 R15.06-2025 — the U.S. adoption of ISO 10218-1:2025 and 10218-2:2025 — published in September 2025 and replaced the 2012 edition, the first major revision in nearly fifteen years. It adds functional-safety clarifications, absorbs the collaborative-application guidance formerly in ISO/TS 15066, and brings cybersecurity into safety planning. The revision is not cosmetic. The Robot Report notes the documents roughly doubled or tripled in length — 10218-1 from 50 to 95 pages, 10218-2 from 72 to 223 — and renamed "safety-rated monitored stop" to "monitored standstill." Design and integration evidence in post-2025 incidents will be measured against materially different written requirements than an incident from the R15.06-2012 era, so the standard in force on the date the cell was built and the date of injury both matter.

When the Injury Happened Is Often the Whole Case

Most robot injuries do not happen while the line runs normally. OSHA's Technical Manual, Section IV, Chapter 4 on industrial robot systems — updated and expanded in 2022 — states that most robot accidents occur in non-routine conditions: programming, maintenance, testing, setup, or adjustment. That is the guidance compliance officers use when inspecting a robotic facility. The fatality data matches.

A NIOSH analysis of Census of Fatal Occupational Injuries records identified 41 robot-related worker deaths in the United States from 1992 through 2017, with a robot striking the worker in 78% of cases and stationary industrial robots involved in 83%. Many occurred during maintenance rather than production. For a claim, this reframes the central question. It is rarely "did the robot malfunction" and usually "why could the robot move while a person was inside its envelope" — which points at guarding, interlocks, energy isolation, and the stop functions the standards specify.

Practical Steps After a Robot Injury

Preservation is the step most often missed. A robot cell is a production asset, and the employer's incentive is to reconfigure and run it again within days — after which the as-injured configuration exists only in photographs and memory.

Open the workers' compensation claim immediately; it runs on its own deadline and does not waive the third-party case.
Identify every company that touched the cell — robot maker, integrator, line builder, controls supplier — before deciding who to sue.
Ask counsel to send preservation letters fast. The controller's logs, teach-pendant history, safety-PLC state, and the physical guarding configuration are the evidence, and a plant will repair and restart the cell.
Pin down which edition of R15.06 governed the cell's design and its last modification, since the 2012 and 2025 texts impose different requirements.
Get the OSHA inspection file and any citations under 1910.147, 1910.212, or the General Duty Clause.

Frequently Asked Questions

Can I sue my employer if a robot injured me?

In most states, no — workers' compensation is the exclusive remedy against an employer. The exception is a separately incorporated parent or affiliate, which may not qualify for that immunity.

Who else can be sued?

The robot manufacturer, the integrator who built and programmed the cell, the line builder, and component suppliers, on design defect, manufacturing defect, failure to warn, and implied warranty.

Does an OSHA citation prove my case?

It does not decide liability, but it documents the hazard and the employer's knowledge of it. Citations usually come under lockout/tagout, machine guarding, or the General Duty Clause, since OSHA has no robot-specific standard.

Why can't I find verdicts for similar cases?

These cases overwhelmingly settle confidentially, sometimes mid-trial as *Holbrook* did in 2021, so there are few public verdicts and little appellate precedent on robot design defects.