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Oklahoma Commercial Litigation & Personal Injury Law Firm

If you have a legal issue in Oklahoma, Nix Patterson has the resources and experience to assist you. We maintain a team of skilled, innovative, and dedicated Oklahoma attorneys with a strong track record of litigation success for individuals, investors, companies, and whistleblowers. Our attorneys have recovered billions in settlements and jury verdicts in complex and diverse cases in many practice areas

Explore the many Oklahoma legal services Nix Patterson offers its Oklahoman clients on a contingency fee basis below. You pay nothing unless we win. 

Nix Patterson Practice Areas

Our Oklahoma office provides comprehensive litigation services across the nation. Below are brief descriptions of many of our practice areas. This is just a sample of our legal services, so please contact our Oklahoma attorneys for more information about how we can help you. 

Personal Injury Litigation 

Nix Patterson handles various personal injury cases, ranging from short-term harm to life-altering catastrophic injuries caused by tractor-trailers or explosions. If you or someone close to you has been hurt, contact Nix Patterson today for a complimentary consultation. Below are some of Patteron’s personal injury practice areas in Oklahoma. 

Truck Crashes

If you were hurt in a Oklahoma truck crash, Nix Patterson will fight for your legal rights. Big commercial trucks frequently travel through Oklahoma, and these crashes often cause horrific injuries that alter a person’s life forever. Tractor-trailer crashes usually involve a large company that owns the rig. The trucking company is backed by their insurance company, which wants to pay you as little as possible in a settlement. You need a tough personal injury lawyer to defend you against these corporate foes. Call Nix Patterson today if you or someone you love was injured or killed by a commercial truck in Oklahoma. 

Oil Field Injuries

Oklahoma has hundreds of active oil drillers, so Nix Patterson sees significant oil field injury litigation in our Oklahoma office. Oil field injuries include well-site falls, explosions, and defective equipment. Talk to Nix Patterson today if you or a loved one were hurt working for an oil company. We have extensive experience ensuring negligent oil and gas companies are liable for their actions. 

Catastrophic Injury

Our Nix Patterson catastrophic injury lawyers have extensive experience serving clients who’ve sustained life-threatening or altering injuries due to someone else’s negligence. If your quality of life has been degraded to a brain or spinal injury, or if you’ve been left with limited mobility or permanent disfigurement, you will need a dedicated lawyer who isn’t afraid to fight for your rights.  

Sexual Abuse

It is awful to think about, but some children were victims of sexual abuse and assault in houses of worship. Nix Patterson has a robust Oklahoma law office that protects the rights of children who were sexually abused. Our lawyers work hard to restore our clients’ lives and won’t let the church and its employees escape accountability.

Dangerous Drug and Medical Device Litigation 

Thousands of Americans are injured annually by prescription drugs and medical devices. Our Oklahoma office employs a team of outstanding mass tort lawyers who represents victims injured by faulty pharmaceuticals and medical devices. 

Dangerous drugs and medical devices may affect hundreds or thousands of people. That’s why the resulting claims and cases may be consolidated into one case by one judge. That judge then chooses a steering committee to oversee the multiple claims of those injured or killed. Nix Patterson has worked in these steering committees in pharmaceutical and medical device lawsuits

Civil Litigation 

Securities Litigation and Portfolio Monitoring

Nix Patterson is a top Oklahoma law firm representing private and public investors in securities fraud and corporate governance legal matters. We have the experience and resources to be selective in the corporate governance and securities litigation we handle. 

Our Oklahoma clients know that Nix Patterson’s business model does not depend on filing many securities cases. Instead, our attorneys focus on the strength of the case and providing the highest quality of legal representation possible. 

Complex Commercial and Business Litigation 

Nix Patterson offers contingency fee representation in complex commercial and business litigation in all forums, including federal court, state court, and international arbitration. 

Our Oklahoma attorneys have litigated and succeeded against some of the most well-funded and powerful defendants and law firms worldwide. If you have significant corporate assets at risk, Nix Patterson offers the best representation in a highly cost-effective manner. 

Intellectual Property 

Our Oklahoma office has assisted many individual investors and small companies in recovering large settlements in compensation for their intellectual property losses. In addition, our lawyers have handled complicated intellectual property cases nationwide, from Washington state to Texas and Pennsylvania. As a result, we have obtained multi-million dollar verdicts for our clients time after time. 

Class Actions

One of our most active practice areas is class actions. Class action lawsuits often involve unfair, deceptive, and fraudulent business practices by large entities. Nix Patterson’s national class action practice aggressively represents consumers, including oil and gas royalty owners and insurance policyholders. 

These complex cases are often contentious and expensive, but our Oklahoma clients can level the playing field in their favor with our firm’s hard work and vast resources. 


American capitalism depends on competition and free trade. However, some businesses care more about maximizing profits than they do about federal antitrust laws. This disregard for the law can cause economic harm to business owners and innocent consumers. 

Our Oklahoma attorneys often handle antitrust cases that involve price fixing, monopolistic schemes, and market allocation agreements. We take an aggressive and innovative approach to fighting anticompetitive business practices in the U.S. 

Nix Patterson recently represented over 100 merchants against banks and major credit card companies over unfair merchant rules that may have violated antitrust protections. We confidentially resolved these merchants’ claims for online travel companies, major airlines, and hotel and resort chains. 

Sensitive Client Representation 

Whistleblower and False Claims Act Litigation 

Nix Patterson maintains a robust department of attorneys prosecuting whistleblower and False Claim Act (FCA) litigation. The FCA allows private individuals to blow the whistle on entities and individuals who engage in fraudulent activity against the government. This type of case is frequently called “qui tam” litigation. 

Engaging in FCA litigation is time-consuming, complex, and requires a lot of front-end investigation. Nix Patterson advances the costs of research, preparation, filing, and prosecuting FCA cases for relators.

Crisis Management  

Nix Patterson has a team of experienced Oklahoma attorneys who guide our clients through various business, litigation, and public relations crises. We aim to contain the crisis and solve the most severe problems in a way that positions the client to minimize economic, reputational, and legal damage. 

Our Oklahoma attorneys represent clients’ interests in crisis management by developing solid relationships with public affairs and communications professionals across the county. Also, Nix Patterson’s contingency and reverse contingency fee arrangements allow you to continue doing business without worrying about hourly legal bills. 

Governmental and Sovereign Representation 

Our attorneys often represent states, counties, cities, and other sovereigns in lawsuits to obtain monetary damages. When a government entity is involved in litigation, serious political, policy, and public relations issues must be considered. Nix Patterson possesses the legal experience and knowledge to represent government entities in litigation. 

For example, in 2016, Nix Patterson obtained a settlement for the State of Florida and 20 other governmental entities in lawsuits against BP regarding the Deepwater Horizon oil spill. 

Contact an Oklahoma Attorney at Nix Patterson Now

Nix Patterson has the legal skill and experience in many practice areas to represent you successfully in Oklahoma. Please contact our Oklahoma law office today for a complimentary consultation.

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Nix Patterson only works on a contingency fee basis. Our clients pay us nothing unless we win. Schedule a free consultation today. Call 512.328.5333 or complete the form below. 

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Nix patterson, LLP
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Recovered in Verdicts and Settlements