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William C. Wagner

Bill is widely recognized as an accomplished and successful trial attorney. He has substantial experience with matters involving environmental law, mass torts, class actions, defense of enforcement actions by federal and state agencies, and insurance coverage and cost recovery actions. Bill has extensive experience trying and winning cases involving complex, scientific issues in civil and criminal trials in federal and state courts, administrative hearings, and arbitrations throughout the country.

Over the years, I’ve found that most expert-driven cases are won or lost long before closing arguments. They usually turn on four decisions that companies make throughout the litigation. When those decisions are handled well, expert testimony becomes one of your strongest strategic advantages. When they aren’t, experts can quickly become one of the largest—and…

General counsel face growing pressure to support aggressive AI adoption. At the same time, they must protect their organization’s legal and governance posture.

This video directly addresses that tension.

Employee resistance to AI rarely stems from a dislike of technology. It stems from unmanaged uncertainty about job security, performance evaluation, and data use. That…

Artificial intelligence is reshaping how lawyers research, draft, and advise.

But AI has introduced two legal risks that users cannot ignore.

  • Courts are sanctioning attorneys for AI-generated errors in court filings.
  • And a February 2026 federal decision held that a client’s independent use of a public AI chatbot was not protected by attorney-client privilege.

This…

If you are a Navy contractor, ship repair company, or defense supplier wondering whether using AI puts trade secrets at risk, you are asking exactly the right question. I see why this concern is growing. Federal agencies now operate under formal AI governance and acquisition guidance, which means contractors should expect more questions about…

If you are moving fast with generative tools, the best legal practices when you use AI are not optional. They are what keep a promising brand from turning into a trademark dispute, a false advertising claim, or a costly rebrand.

What are the best legal practices when you use AI for branding?

The best legal…

AI lawsuits are increasing as businesses use AI-generated logos and brand names without trademark clearance. Learn how the Lanham Act applies and how Taft can help mitigate risk.

Artificial intelligence is transforming modern branding. Companies now use AI to generate product names, logos, taglines, social media campaigns, and even full-scale brand launches in minutes.

The…

Insurance coverage for trademark infringement lawsuits is far narrower than most executives realize.

In this video, Bill Wagner, a partner in Taft’s Indianapolis office, explains what CGL policies may cover, why willfulness allegations destroy coverage, and how insurer-appointed defense counsel can put companies at risk.

Your company’s most valuable assets may not appear on your balance sheet. They’re in your systems, your processes, your technology, and your people. Trade secrets don’t require registration and don’t expire, but they only remain protected if you actively safeguard them.

This video explains what qualifies as a trade secret under U.S. law and how…