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Your Milbank 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 Milbank. This page covers the deadlines, the definitions that decide whether something is protected, the federal district court for Grant County, and the South Dakota rules that sit next to the federal ones. These rules apply across South Dakota, and an attorney familiar with the District of South Dakota can explain what to expect there.
Quick Answers on Patents, Trademarks, Copyrights, and Trade Secrets
- 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)).
- Trademarks can be registered federally and in South Dakota. The federal register is set up by 15 U.S.C. 1051, and state registration is filed with the South Dakota Secretary of State under SDCL chapter 37-6.
- How long does a copyright last? For works created on or after January 1, 1978, the life of the author plus 70 years (17 U.S.C. 302(a)), with different counts for joint works and works made for hire.
- 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)).
- Which court? A case from Milbank that belongs in federal court is filed in the District of South Dakota, which holds court in Aberdeen, Sioux Falls, Pierre, Deadwood, and Rapid City.
The Four Main Areas of Intellectual Property Law
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)).
Names, logos, and slogans that tell customers who is behind a product are trademarks, defined in 15 U.S.C. 1127 as any word, name, symbol, or device used to identify and distinguish a person’s goods and to indicate their source. A service mark does the same job 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.
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
The copyright deadline is three years after the claim accrued (17 U.S.C. 507(b)). An owner who has not registered should treat registration as part of the first steps, since no infringement action on a United States work can be instituted before it (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)).
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)).
The federal deadlines above do not decide state-law claims. South Dakota sets its own limitation periods and accrual rules, and an attorney can tell you which apply to a trade secret or unfair competition claim brought under state law.
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Federal and South Dakota Trademark Registration
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)).
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.
A copyright owner cannot file an infringement action on a United States work before registration has been made (17 U.S.C. 411(a)), although a refusal of registration can also open the door to suit if the Register of Copyrights is notified and served with the complaint.
The application date controls the length of patent protection, which ends 20 years after filing (35 U.S.C. 154(a)(2)), so planning the filing is part of protecting the invention.
Federal and State Courts for Intellectual Property Claims
Patent, plant variety protection, and copyright claims belong exclusively in federal court: the district courts have original jurisdiction of any civil action arising under an Act of Congress relating to patents, plant variety protection, copyrights, and trademarks, and no state court may hear the patent, plant variety protection, and copyright claims (28 U.S.C. 1338(a)). Trademark claims may also be brought in state court.
There is only one federal district in South Dakota. The District of South Dakota hears federal cases from Grant County and holds court in Aberdeen, Sioux Falls, Pierre, Deadwood, and Rapid City (28 U.S.C. 122).
How South Dakota Law Fits In
Trade secret claims are not only federal. The Uniform Trade Secrets Act (SDCL 37-29-1 to 37-29-11) may apply to the same facts, and the federal statute provides its own 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)).
Beyond the federal Lanham Act, a brand owner in Milbank 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.
Whether to plead federal claims, state claims, or both turns on the facts, and an initial conversation with an attorney is the way to sort that out.
The Basics of Each Type of Claim
Patent Infringement
A patent claim asks whether the accused product or process is covered by the patent and whether the accused party acted without authority. The forms of infringement listed in 35 U.S.C. 271(a) are making, using, offering to sell, selling, and importing.
Because the six-year damages limit in 35 U.S.C. 286 runs back from the complaint, delay can reduce what is recoverable.
Trademark Infringement and Brand Disputes
Even without registration, the Lanham Act allows a civil action against anyone who uses in commerce a word, term, name, symbol, or device likely to cause confusion or deceive about affiliation, connection, or origin (15 U.S.C. 1125(a)(1)), brought by a person who believes he or she is or is likely to be damaged.
A state registration in South Dakota (SDCL chapter 37-6) is different from federal registration on the principal register (15 U.S.C. 1051).
Copyright Claims
Whether copying is actionable begins with what is protected. Copyright subsists in original works fixed in a tangible medium (17 U.S.C. 102(a)) and does not reach ideas, procedures, processes, systems, or methods of operation (17 U.S.C. 102(b)).
Federal district courts have original jurisdiction over copyright claims (28 U.S.C. 1338(a)).
Trade Secret Misappropriation
Trade secret cases often turn on whether the owner took reasonable measures to keep the information secret and whether it has independent economic value from not being generally known, the two elements of 18 U.S.C. 1839(3).
Documents showing who had access, and what confidentiality steps existed, are among the first things to preserve.
What a Court Can Award or Order
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)).
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.
Registration timing affects these remedies: no award of statutory damages or attorney’s fees is available for infringement of an unpublished work commenced before the effective date of its registration, or for infringement commenced after first publication and before registration unless registration is made within three months after first publication (17 U.S.C. 412).
For a misappropriated trade secret, 18 U.S.C. 1836(b)(3) authorizes an injunction against actual or threatened misappropriation, damages for actual loss and unjust enrichment or a reasonable royalty, exemplary damages up to 2 times for willful and malicious misappropriation, and reasonable attorney’s fees to the prevailing party in stated situations.
Facing an infringement dispute in Milbank? Find out where your matter stands.
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.
For copyright, gather the work, drafts with dates, and examples of copying. For a trade secret, gather what the information is, who could see it, and what confidentiality agreements or security measures applied.
A Note on Milbank and the Federal Court
A matter from Milbank belongs to Grant County and, when it is a federal case, to the District of South Dakota. Local practice, such as how quickly cases are scheduled and how disputes are handled, shapes how the general rules on this page play out.
The South Dakota intellectual property overview covers every city we serve across the state. Nearby communities we serve include Watertown, Sisseton, and Webster. For a personal injury rather than an intellectual property question, our Milbank personal injury page explains the South Dakota rules.
Frequently Asked Questions
How long does a patent last?
A patent lasts 20 years from the date the application was filed in the United States (35 U.S.C. 154(a)(2)), so the filing date, not the issue date, sets the end of the term.
What is the difference between federal and South Dakota trademark registration?
Federal registration is on the principal register through the Patent and Trademark Office (15 U.S.C. 1051). South Dakota registration is a separate filing made with the South Dakota Secretary of State under SDCL chapter 37-6, and it does not replace the federal one.
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)).
Can I sue in federal court over a stolen trade secret?
Yes, if the trade secret is related to a product or service used in, or intended for use in, interstate or foreign commerce (18 U.S.C. 1836(b)(1)). The federal district courts have original jurisdiction of these actions (18 U.S.C. 1836(c)).
How many federal districts does South Dakota have?
South Dakota has one federal judicial district: the District of South Dakota (28 U.S.C. 122).
Can I bring both federal and South Dakota claims?
Often yes. A dispute can involve federal claims, such as under 15 U.S.C. 1114 or 18 U.S.C. 1836, and state-law claims under South Dakota law. An attorney can advise which to bring.
Why does timing matter in an intellectual property dispute?
Because federal statutes set fixed limits, such as three years for copyright (17 U.S.C. 507(b)) and for federal trade secret claims (18 U.S.C. 1836(d)), and six years of look-back for patent damages (35 U.S.C. 286), waiting can cost rights and money.
What should I do if someone copies my work?
Note the dates, keep copies, and speak with an attorney early, since deadlines such as three years for copyright (17 U.S.C. 507(b)) and six years of look-back for patent damages (35 U.S.C. 286) run from the events.
Take the Next Step in Your Milbank Intellectual Property Matter
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