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Your Beresford 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 Beresford. The sections that follow cover what patents, trademarks, copyrights, and trade secrets protect, the filing deadlines, registration, the federal courts for Lincoln and Union counties, South Dakota’s own trademark and trade secret rules, and what an infringement claim involves. 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)).
- Federal trademark registration is available to the owner of a mark used in commerce or to a person with a bona fide intention to use one (15 U.S.C. 1051(a)(1), (b)(1)).
- Three years to bring a copyright claim (17 U.S.C. 507(b)), and federal district courts have original jurisdiction over copyright claims (28 U.S.C. 1338(a)).
- Trade secrets get a federal civil action when the secret relates to a product or service used in, or intended for use in, interstate or foreign commerce (18 U.S.C. 1836(b)(1)), filed in federal district court (18 U.S.C. 1836(c)).
- The federal court for Beresford 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
If you have made something new and useful, such as a device, a process, a manufactured article, or a composition, a patent is the tool the statute provides (35 U.S.C. 101). The grant runs from issuance to 20 years after 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.
Writing, music, images, film, software text, and similar creative work are the subject of copyright, which subsists in original works of authorship fixed in a tangible medium (17 U.S.C. 102(a)). The statute is equally clear about what is excluded: ideas, procedures, processes, systems, methods of operation, concepts, principles, and discoveries (17 U.S.C. 102(b)).
A trade secret is information the owner has taken reasonable measures to keep secret and that derives independent economic value from not being generally known to, and not being readily ascertainable through proper means by, another person (18 U.S.C. 1839(3)). The statute covers financial, business, scientific, and technical information such as patterns, plans, formulas, designs, methods, processes, programs, and codes.
Time Limits That Matter in Patent, Copyright, and Trade Secret Cases
Under 17 U.S.C. 507(b), a civil copyright action must be commenced within three years after the claim accrued, and under 17 U.S.C. 411(a) the copyright claim for a United States work must be registered, or registration refused, before that action is instituted.
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)).
For patent damages, the look-back is six years from the complaint (35 U.S.C. 286), which is separate from the 20-year patent term measured from the filing date (35 U.S.C. 154(a)(2)).
A South Dakota state-law claim brings its own deadline and its own accrual rule. Both come from South Dakota statutes and court decisions and should be reviewed by an attorney at the start of the matter.
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Steps That Strengthen a Claim Before It Is Needed
The Lanham Act sets two routes to the principal register: use in commerce (15 U.S.C. 1051(a)(1)) and a bona fide intention to use (15 U.S.C. 1051(b)(1)). Each requires an application, a verified statement, and the prescribed fee.
South Dakota also has its own trademark registration. A state filing is made with the South Dakota Secretary of State under SDCL chapter 37-6, is separate from the federal register, and does not replace a federal application.
Registering a copyright before there is a dispute avoids a delay later. The statute says no civil action for infringement of the copyright in a United States work may be instituted until preregistration or registration has been made (17 U.S.C. 411(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.
Federal and State Courts for Intellectual Property Claims
Under 28 U.S.C. 1338(a), the federal district courts have original jurisdiction over patent, plant variety protection, copyright, and trademark claims, and that jurisdiction is exclusive for patents, plant variety protection, and copyrights. A trademark claim can also be brought in state court.
South Dakota constitutes one federal judicial district, the District of South Dakota (28 U.S.C. 122), so a federal case from Beresford is filed there. The court holds court in Aberdeen, Sioux Falls, Pierre, Deadwood, and Rapid City. Because Beresford lies in more than one county, it is worth confirming which county the matter falls in.
South Dakota Law Alongside Federal Law
South Dakota has a trade secret statute of its own, the Uniform Trade Secrets Act (SDCL 37-29-1 to 37-29-11). A trade secret dispute from Beresford can involve that statute, and the federal Defend Trade Secrets Act adds a civil action in federal court for a trade secret related to a product or service used in interstate or foreign commerce (18 U.S.C. 1836(b)(1), (c)).
Beyond the federal Lanham Act, a brand owner in Beresford 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.
Choosing between state and federal claims, or bringing both, is something an attorney should decide after reviewing what happened and what proof exists.
The Basics of Each Type of Claim
Claims That a Patent Is Being Infringed
Whether conduct is infringement is measured against 35 U.S.C. 271(a), which reaches anyone who, without authority, makes, uses, offers to sell, or sells a patented invention in the United States or imports it during the patent’s term.
Both patent owners and people accused of infringing should collect the patent number, product samples, and dates early.
Trademark and Unfair Competition Claims
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.
State trademark registration in South Dakota is filed with the South Dakota Secretary of State under SDCL chapter 37-6, separate from the federal statutes.
Copying of 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).
Federal district courts have original jurisdiction over copyright claims (28 U.S.C. 1338(a)).
Confidential Information and Departing Employees
In a trade secret dispute, both sides examine the same two things: the steps the owner took to keep the information secret and the value that comes from its not being generally known or readily ascertainable (18 U.S.C. 1839(3)).
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)).
Injunctions and Money Damages by Type of Claim
In a patent case, the statute directs an award of damages adequate to compensate for the infringement and never less than a reasonable royalty, plus interest and costs, with increases of up to three times possible in the court’s discretion (35 U.S.C. 284). Injunctions are available in accordance with the principles of equity (35 U.S.C. 283).
Trademark: courts can grant injunctions according to the principles of equity to prevent the violation of the rights of a registrant or a violation of section 1125(a), (c), or (d) (15 U.S.C. 1116(a)), and when a violation is established the plaintiff is entitled, subject to the principles of equity, to recover the defendant’s profits, any damages sustained by the plaintiff, and the costs of the action (15 U.S.C. 1117(a)).
A copyright owner can choose between actual damages plus the infringer’s profits attributable to the infringement, and statutory damages (17 U.S.C. 504(a), (b)), and statutory damages range from $750 to $30,000 per work as the court considers just (17 U.S.C. 504(c)(1)).
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.
Trade secrets: under the federal statute a court may grant an injunction to prevent actual or threatened misappropriation, award damages for actual loss and for unjust enrichment, or impose liability for a reasonable royalty, and if the misappropriation was willful and malicious, award exemplary damages of not more than 2 times the damages awarded, and attorney’s fees in stated circumstances (18 U.S.C. 1836(b)(3)).
Protecting an idea, brand, or creative work in Beresford? Talk to an attorney about your deadlines.
What to Gather Before You Talk to an Attorney
Start with the basics: what you created or invented, who was involved, and when each step happened. Dates matter because the deadlines described above run from events such as accrual of a claim, discovery of a misappropriation, or the filing of an application.
If the issue is a patent, gather technical drawings, descriptions, and any application numbers. If it is a trademark, gather the mark, examples of use, and registration information.
For a copyright question, bring the work, dated drafts, any registration papers, and examples of the copying. For a trade secret question, bring a description of the information, who had access, and what confidentiality steps were in place, such as agreements and access controls.
Beresford: Courts, Counties, and Getting Started
Deadlines and definitions are the same across South Dakota, and the courthouse is not. A federal case from Beresford is filed in the District of South Dakota, and getting the timeline for that court from an attorney who practices there is a sound first step.
If your matter is an injury claim instead of an intellectual property dispute, see our Beresford personal injury page. We also match people with intellectual property attorneys in Canton, Lennox, and Vermillion. The South Dakota intellectual property overview covers every city we serve across the state.
Frequently Asked Questions
How far back can I recover damages for patent infringement?
Six years before the complaint. No recovery may be had for infringement committed more than six years before the filing of the complaint (35 U.S.C. 286).
Does an unregistered brand have any protection?
Possibly. A civil action can be brought under 15 U.S.C. 1125(a)(1) by a person who believes he or she is or is likely to be damaged by a false designation of origin likely to cause confusion, and South Dakota law may offer additional protection.
How long do I have to sue for copyright infringement?
A civil action must be commenced within three years after the claim accrued (17 U.S.C. 507(b)).
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.
Where does the federal court for Beresford hold court?
The District of South Dakota holds court in Aberdeen, Sioux Falls, Pierre, Deadwood, and Rapid City (28 U.S.C. 122).
Does South Dakota law protect trade secrets?
Yes. South Dakota has the Uniform Trade Secrets Act (SDCL 37-29-1 to 37-29-11), and the federal Defend Trade Secrets Act (18 U.S.C. 1836) adds a separate federal action.
Do deadlines differ for different kinds of intellectual property?
Yes. Copyright and federal trade secret claims each have a three-year period, measured differently (17 U.S.C. 507(b); 18 U.S.C. 1836(d)), and patent damages are limited to six years before the complaint (35 U.S.C. 286).
How do I know whether I need a patent, trademark, copyright, or trade secret protection?
It depends on what you are protecting: an invention (35 U.S.C. 101), a name or logo that identifies goods or services (15 U.S.C. 1127), original creative work (17 U.S.C. 102(a)), or confidential information (18 U.S.C. 1839(3)).
Speak With Someone Who Handles Cases Like Yours
If you are unsure where to start, the form above is the simplest first step. It connects you with an attorney who can explain your options in Beresford and what the next few weeks may involve.

