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Your Yankton Intellectual Property Attorney
Intellectual property law splits into four main areas, patents, trademarks, copyrights, and trade secrets, and each has its own rules on where a case is filed and how long you have. The sections below explain those rules for a matter arising in Yankton. This page covers the deadlines, the definitions that decide whether something is protected, the federal district court for Yankton County, and the South Dakota rules that sit next to the federal ones. Deadlines in intellectual property cases run on fixed dates, so learning them early usually helps more than trying to catch up later.
Your Key Federal and South Dakota Rules in One Place
- Who can be liable for patent infringement? Anyone who, without authority, makes, uses, offers to sell, or sells a patented invention in the United States, or imports it (35 U.S.C. 271(a)).
- Infringing a registered mark means using a reproduction, counterfeit, copy, or colorable imitation in a way likely to cause confusion (15 U.S.C. 1114(1)(a)).
- Register first, sue second. No civil action for infringement of the copyright in a United States work can be instituted until registration has been made or refused in the way the statute provides (17 U.S.C. 411(a)).
- The trade secret clock runs from discovery: three years from when the misappropriation was, or with reasonable diligence should have been, discovered (18 U.S.C. 1836(d)).
- The federal court for Yankton is the District of South Dakota, with court held at Aberdeen, Sioux Falls, Pierre, Deadwood, and Rapid City (28 U.S.C. 122).
Patents, Trademarks, Copyrights, and Trade Secrets Compared
A patent protects an invention. Whoever invents or discovers a new and useful process, machine, manufacture, or composition of matter may obtain a patent, subject to the conditions and requirements of the patent statute (35 U.S.C. 101). The term is 20 years from the date the application was filed (35 U.S.C. 154(a)(2)).
Under 15 U.S.C. 1127, a trademark is any word, name, symbol, or device, or a combination, that identifies and distinguishes one person’s goods from another’s and indicates their source, and a service mark performs that function for services.
For creative work, copyright arises in original works of authorship fixed in a tangible medium of expression (17 U.S.C. 102(a)). The limit in 17 U.S.C. 102(b) means the underlying idea or method is not protected even when the way it is expressed is.
Trade secret protection depends on two things: the owner took reasonable measures to keep the information secret, and the information has independent economic value because it is not generally known or readily ascertainable (18 U.S.C. 1839(3)). Formulas, methods, processes, programs, and codes can all qualify.
How Long Do You Have to Bring a Claim?
For copyright infringement, the statute sets three years from when the claim accrued (17 U.S.C. 507(b)), and registration or a refusal of registration must come before suit on a United States work (17 U.S.C. 411(a)).
For a federal trade secret claim, the three years run from discovery of the misappropriation, or from when it should have been discovered by reasonable diligence, and a continuing misappropriation is treated as a single claim (18 U.S.C. 1836(d)).
Patents: there is no recovery for infringement committed more than six years before the filing of the complaint or counterclaim for infringement (35 U.S.C. 286). Waiting can therefore shrink the damages available even when the patent itself is still in force.
Claims under South Dakota law carry their own limitation periods and their own rules for when the clock starts, which are different questions from the federal deadlines in this section. Have the dates checked before relying on any of them.
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Registration Steps for Trademarks and Copyrights
For a trademark, the owner of a mark used in commerce may request registration on the principal register by paying the prescribed fee and filing an application and a verified statement with the Patent and Trademark Office (15 U.S.C. 1051(a)(1)). A person with a bona fide intention to use a mark in commerce may also apply (15 U.S.C. 1051(b)(1)).
Federal registration is not the only route. South Dakota’s trademark registration provisions, SDCL chapter 37-6, provide for a state filing with the South Dakota Secretary of State that operates separately from the federal register.
For copyright, protection attaches to original works fixed in a tangible medium (17 U.S.C. 102(a)), but before an infringement suit on a United States work can be instituted, preregistration or registration of the copyright claim must have been made (17 U.S.C. 411(a)). A work created on or after January 1, 1978 lasts for the life of the author plus 70 years (17 U.S.C. 302(a)).
For an invention, the patent term of 20 years runs from the date the application was filed (35 U.S.C. 154(a)(2)), so the timing of an application is worth discussing with a patent attorney.
Where an Intellectual Property Case From Yankton Is Filed
The choice of court depends on the type of claim. Patent and copyright cases can only be filed in federal district court (28 U.S.C. 1338(a)), a federal trade secret action is filed in federal district court (18 U.S.C. 1836(c)), and trademark claims can go to federal or state court.
Under 28 U.S.C. 122, South Dakota is one federal judicial district, and Yankton County is part of it. The District of South Dakota holds court in Aberdeen, Sioux Falls, Pierre, Deadwood, and Rapid City.
South Dakota Law Alongside Federal Law
The federal civil action for trade secrets (18 U.S.C. 1836(b)(1)) is filed in federal district court (18 U.S.C. 1836(c)), and a dispute from Yankton may also raise a claim under the Uniform Trade Secrets Act (SDCL 37-29-1 to 37-29-11). Which claims fit depends on the facts.
Beyond the federal Lanham Act, a brand owner in Yankton can look to South Dakota’s own trademark registration system. Filings are made with the South Dakota Secretary of State under SDCL chapter 37-6, and a state filing does not replace a federal application.
Which claims to bring, and in which court, is a strategy question for an attorney who can read the documents.
Types of Intellectual Property Claims
Using an Invention Without Permission
Patent disputes turn on the patent’s claims and on conduct listed in 35 U.S.C. 271(a), namely making, using, offering to sell, selling, or importing a patented invention without authority.
Damages are limited to infringement within the six years before the complaint (35 U.S.C. 286).
Disputes Over Names, Logos, and Brands
Brand disputes often involve both a registered mark and one that has never been registered. Registered marks are protected against likely confusion under 15 U.S.C. 1114(1)(a), and 15 U.S.C. 1125(a)(1) covers false designation of origin more broadly.
Evidence such as first-use dates, sales records, and examples of actual confusion is easiest to gather before a dispute escalates.
Protecting Creative Work
In a copyright case, the first questions are whether the work is protected at all under 17 U.S.C. 102(a) and whether what was copied was protected expression rather than an idea or method excluded by 17 U.S.C. 102(b).
For a United States work, registration must be made before an infringement suit is instituted (17 U.S.C. 411(a)).
Disputes Over Trade Secrets
A federal trade secret claim requires a trade secret related to a product or service used in, or intended for use in, interstate or foreign commerce (18 U.S.C. 1836(b)(1)), and the information must meet the definition of a trade secret in 18 U.S.C. 1839(3): reasonable secrecy measures and independent economic value.
The federal action has a three-year deadline running from discovery, or from when reasonable diligence should have led to discovery (18 U.S.C. 1836(d)).
Remedies in Intellectual Property Cases
Relief in a patent case can include damages of at least a reasonable royalty with interest and costs, and enhancement up to three times in the court’s discretion (35 U.S.C. 284), and an injunction on reasonable terms under the principles of equity (35 U.S.C. 283).
A brand owner who establishes a violation may recover the defendant’s profits, damages sustained, and costs (15 U.S.C. 1117(a)), and can ask the court for an injunction to stop the violation (15 U.S.C. 1116(a)), both subject to the principles of equity.
Under 17 U.S.C. 504, the choice is between actual damages with additional profits and statutory damages, which the court sets between $750 and $30,000 for any one work.
The registration date can decide whether statutory damages and attorney’s fees are available at all. Section 412 of the copyright statute bars them for infringement commenced before registration, subject to a three-month window after first publication.
The Defend Trade Secrets Act lists the remedies: an injunction, damages for actual loss and unjust enrichment (or a reasonable royalty), exemplary damages of not more than 2 times the damages for willful and malicious misappropriation, and attorney’s fees in the situations the statute names (18 U.S.C. 1836(b)(3)).
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What to Gather Before You Talk to an Attorney
Bring a simple chronology. When was the work created, when was it first shared or sold, and when did you first notice the copying or use? Many of the deadlines on this page run from those events.
Inventors should collect drawings, notes, and application numbers, and brand owners should collect the mark, examples of use, and any registration papers, before the first conversation.
Copyright matters call for the original work, dated versions, registration papers, and side-by-side examples of the copying. Trade secret matters call for a description of the information, a list of who had access, and the confidentiality measures that existed.
A Note on Yankton and the Federal Court
The rules on this page are national or statewide, but the practical details are local. For a Yankton claim that means Yankton County and the District of South Dakota. Asking an attorney how long cases usually take there helps put the deadlines in context.
Every South Dakota city we cover is listed on our South Dakota intellectual property attorney page. Our coverage in this part of South Dakota also includes Vermillion, Tyndall, and Beresford. For a personal injury rather than an intellectual property question, our Yankton personal injury page explains the South Dakota rules.
Frequently Asked Questions
Where is a patent infringement case filed?
In federal district court. The district courts have original jurisdiction of civil actions arising under patent law, and that jurisdiction is exclusive (28 U.S.C. 1338(a)). For Yankton, that is the District of South Dakota.
Can I register my business name or logo as a trademark?
A word, name, symbol, or device used to identify and distinguish goods and indicate their source is a trademark (15 U.S.C. 1127), and the owner of a mark used in commerce may request federal registration (15 U.S.C. 1051(a)(1)).
What kinds of work does copyright cover?
Original works of authorship fixed in any tangible medium of expression (17 U.S.C. 102(a)), including literary, musical, dramatic, and pictorial works, motion pictures, sound recordings, and architectural works.
Does South Dakota have a trade secret statute?
Yes. It is the Uniform Trade Secrets Act (SDCL 37-29-1 to 37-29-11). The federal Defend Trade Secrets Act provides a separate civil action (18 U.S.C. 1836), and an attorney can tell you which claims fit the facts.
Which court handles patent and copyright cases from Yankton?
Both belong exclusively in federal district court (28 U.S.C. 1338(a)), which for Yankton means the District of South Dakota.
Do federal deadlines apply to South Dakota state-law claims?
Not automatically. South Dakota state-law claims have their own limitation periods and accrual rules, set by South Dakota statutes and court decisions, and an attorney should check them.
What are the main deadlines in intellectual property cases?
Copyright: three years from accrual (17 U.S.C. 507(b)). Federal trade secrets: three years from discovery (18 U.S.C. 1836(d)). Patent damages: no recovery for infringement more than six years before the complaint (35 U.S.C. 286).
How do I keep information as a trade secret?
Take reasonable measures to keep it secret, because that is one of the two elements of the definition (18 U.S.C. 1839(3)), and consult an attorney about what measures are reasonable for your business.
Take the Next Step in Your Yankton Intellectual Property Matter
Questions about a patent, a trademark filing, a copyright registration, or a trade secret are exactly what an initial conversation is for. Use the form to get matched with an attorney who can answer them for your case.
