Invention Assignment Laws in Texas: Who Owns What You Create

Federal law does not automatically grant employers ownership of employee inventions. The default rule under common law is that the employee who conceived and created the invention owns it, unless there is a written agreement assigning ownership to the employer. The Defend Trade Secrets Act (DTSA), 18 U.S.C. § 1836, protects trade secrets and allows employers to prevent disclosure of proprietary information, but does not automatically assign invention ownership.

Federal patent law, 35 U.S.C. § 101, grants patents to the inventor, not the employer, unless a valid written agreement transfers the rights. The USPTO recognizes the inventor as the patent applicant unless a signed assignment exists. However, federal law does allow employers to claim "shop rights"—the right to use an invention created by an employee using company resources during work—even without a written agreement, though this right is limited to the employer's own use and does not grant full ownership or the exclusive right to license or sell the invention.

The Defend Trade Secrets Act provides federal remedies including injunctions and damages for misappropriation of trade secrets, and allows employers to protect confidential business information. However, the DTSA does not eliminate an employee's ownership interest in patentable inventions unless waived by signed agreement. Enforcement is through federal district courts, and the remedies available include actual damages, unjust enrichment, and exemplary damages up to three times the actual loss for willful and malicious misappropriation.

Texas law provides stronger protections for employee inventors than federal law alone. Texas Business & Commerce Code § 5.008 is the controlling statute and explicitly prohibits employers from entering into or enforcing invention assignment agreements that restrict an employee's right to develop, invent, or improve any invention on the employee's own time without using the employer's equipment, supplies, facilities, or trade secrets.

Under Texas law, an employee retains ownership of inventions created entirely outside work hours and without any company resources. The statute defines this protection clearly: an employer cannot require an employee to assign rights to inventions developed on personal time, even if the employee works in a related field. This is significantly stronger than federal law, which relies on written agreements and the narrower "shop rights" doctrine.

Texas Property Code § 123.001 establishes that in the absence of a written agreement or understanding, an employee owns inventions made outside the scope of employment and not using company resources. This creates a statutory baseline that favors employee ownership. For inventions made during work hours using company resources, employers can claim ownership only if there is a valid written agreement that is "reasonable" under the circumstances. The burden is on the employer to prove the agreement is reasonable and was properly executed.

Under Texas law, reasonable written invention assignment agreements typically cover inventions that: (1) are developed using company equipment, supplies, or facilities; (2) are created during work time; (3) result from work the employee was hired to perform; or (4) relate directly to the employer's business or actual or demonstrably anticipated research or development. However, the statute explicitly prohibits "non-compete" style restrictions that blanket all inventions in a field regardless of when or where created.

Texas courts interpret invention assignment agreements narrowly and construe ambiguities against the employer. The state also recognizes the Texas Uniform Trade Secrets Act (UTSA), which allows employers to protect confidential information and trade secrets through reasonable measures but does not automatically assign ownership of patentable inventions. Remedies under Texas law include injunctive relief to prevent unauthorized use, damages for breach of contract or misappropriation of trade secrets, and attorney's fees if the plaintiff prevails.

Several important exceptions and limitations exist under Texas invention assignment law. First, Texas Business & Commerce Code § 5.008 contains an explicit carve-out: the statute does not apply to inventions that are the result of the employee's assigned work or developed with the employer's equipment, supplies, facilities, or trade secrets. This is the primary exception and allows employers to claim inventions made during work on projects the employee was hired to develop.

Second, the statute does not limit or restrict an employer's right to protect confidential information or trade secrets under the Texas Uniform Trade Secrets Act. An employer can prevent an employee from disclosing or using company trade secrets even if the employee technically "owns" an invention—the trade secret protection is separate from ownership. However, this does not give the employer ownership; it only restricts the employee's use.

Third, written agreements that are "reasonable" under the circumstances are enforceable. What constitutes "reasonable" is not precisely defined in the statute but generally includes agreements that limit the assignment to inventions that: (a) result from research or development conducted at the company; (b) use company resources; or (c) relate to the company's business. Courts have upheld agreements limited to inventions in the field of the company's work if created during employment using company resources.

Fourth, Texas courts recognize the distinction between inventions and general knowledge or skills. An employee cannot be restricted from using general knowledge gained during employment, even if the employer contributed to that knowledge through training. The restriction applies only to specific inventions, not to the employee's skill set.

Fifth, the statute does not prevent employers from requiring non-compete agreements in certain circumstances (though these are separately regulated under Texas law and must also be reasonable). A non-compete and an invention assignment are distinct; an employer may have a valid invention assignment but an unenforceable non-compete if the non-compete is overly broad.

Sixth, employees hired for research and development positions or who sign employment agreements explicitly assigning invention rights to the employer as a condition of employment may be bound by those agreements if they are reasonable in scope and properly executed. However, even in these cases, the employee's personal-time inventions remain protected under § 5.008.

Step 1: Document Everything Carefully. Keep detailed records of when and where you created the invention or innovation. Document the date you conceived the idea, the dates you worked on it, whether you used any company equipment (computer, lab facilities, software licenses, etc.) or company time, and whether you used any company proprietary information or trade secrets. Save all emails, notes, prototypes, and design documents showing your work, particularly those with timestamps. If you worked on the invention at home, document that explicitly. If the invention uses no company resources and was created entirely outside work hours, maintain evidence of this separation.

Step 2: Understand and Review Your Employment Agreement. Locate any written invention assignment clause in your employment agreement, offer letter, employee handbook, or any separate agreement you signed regarding intellectual property. Read it carefully and identify exactly what inventions it claims to cover. Determine whether it attempts to cover inventions made on personal time without company resources—if so, this clause is likely unenforceable under Texas Business & Commerce Code § 5.008. Identify whether the agreement distinguishes between inventions made during work hours using company resources versus personal inventions. If the language is vague or appears to cover "all inventions related to the company's field," note this as potential ambiguity—Texas courts construe such language against the employer.

Step 3: Attempt Internal Resolution Before Filing a Claim. Request a meeting with your direct manager, HR department, or company legal counsel to discuss the invention and your position that you own it (or co-own it). Provide written documentation of your invention's creation, emphasizing when and where it was developed and what resources were used. Explain your position calmly and clearly: "I created this invention entirely on my own time using no company resources, and under Texas Business & Commerce Code § 5.008, I retain ownership." Request a written response confirming that the company does not claim ownership or will not interfere with your use or licensing of the invention. Send this request via email so you have documentation of the company's response. If the company disagrees, ask them to provide their written basis for claiming ownership and whether they will litigate the dispute.

Step 4: Consult an Intellectual Property or Employment Attorney Before Taking Further Action. This step is critical because invention ownership disputes often involve complex contract interpretation and patent law considerations. An employment attorney can: (a) review your employment agreement and assess enforceability; (b) evaluate the strength of your ownership claim under Texas law; (c) advise whether the company's position has merit; (d) assess whether filing a patent application now (in your name) is wise or whether doing so might provoke litigation; (e) draft a cease-and-desist letter or demand letter on your behalf if the company is claiming ownership improperly; and (f) represent you in negotiation or litigation if necessary. Do not file a patent application or publicly disclose the invention until you have legal counsel's advice, as these actions can trigger disputes or limit your remedies.

Step 5: Consider Filing a Declaratory Judgment Action if Necessary. If the company claims ownership and refuses to acknowledge your rights, and you need a court ruling to proceed with patenting or commercializing the invention, you can file a declaratory judgment action in Texas state court seeking a court order confirming your ownership. This type of claim asks the court to declare who owns the invention based on the facts and the applicable law. File in the district court in the county where the company is located or where you worked. You will need to allege: (1) you created the invention; (2) the company claims ownership or threatens to interfere; (3) there is a genuine dispute about ownership; and (4) you need a court declaration to resolve the dispute. Your attorney will handle drafting and filing the complaint, which must include all relevant facts about the invention's creation, your employment agreement, and your position on ownership. The company will have the opportunity to respond, and the case will likely involve discovery (document exchange and depositions) before trial or settlement.

Step 6: Preserve Evidence and Avoid Company Interference. Once a dispute arises, immediately secure all files, emails, notes, and other evidence related to the invention. If you believe the company may delete or restrict your access to your work files, make copies of relevant documents now and store them outside company systems. Do not delete company emails or documents; instead, preserve them. Do not attempt to take company trade secrets or confidential information with you if you leave the company—this will undermine your position and expose you to liability under the Texas UTSA. If the company threatens to prevent you from patenting the invention, working on it further, or licensing it, document these threats in writing (email confirmation). If the company takes adverse action against you (termination, demotion, negative evaluation) in retaliation for asserting your invention ownership rights, document this as potential retaliation, which may be actionable under wrongful termination law in Texas.