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Your Harrisburg 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 Harrisburg. You will find the quick answers first, then the definitions, deadlines, registration, the courts, state law, and the basic elements of infringement claims, with the statute behind each point. An attorney who handles intellectual property matters can tell you which of these rules apply to your situation.
Quick Answers on Patents, Trademarks, Copyrights, and Trade Secrets
- Patent claims are filed in federal court only (28 U.S.C. 1338(a)), and the six-year damages limit in 35 U.S.C. 286 makes early action important.
- Trademark claims can go to federal or state court (28 U.S.C. 1338(a)), and South Dakota’s own registration is a separate filing with the South Dakota Secretary of State.
- Copyright covers expression, not ideas: original works of authorship fixed in a tangible medium (17 U.S.C. 102(a)), but never an idea, procedure, process, system, or method of operation (17 U.S.C. 102(b)).
- Federal trade secret claims must be brought within 3 years after the misappropriation is discovered or should have been discovered with reasonable diligence (18 U.S.C. 1836(d)).
- Which court? A case from Harrisburg 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.
Which Type of Protection Fits Your Situation
Inventions are the domain of patent law. The categories the statute names are processes, machines, manufactures, and compositions of matter (35 U.S.C. 101), and the patent term ends 20 years from the filing date of the application (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.
Copyright protects original works of authorship fixed in any tangible medium of expression (17 U.S.C. 102(a)), such as literary, musical, dramatic, and pictorial works, motion pictures, sound recordings, and architectural works. It never extends to an idea, procedure, process, system, method of operation, concept, principle, or discovery (17 U.S.C. 102(b)).
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.
Why Timing Matters in Intellectual Property Disputes
Three years is the copyright limit in 17 U.S.C. 507(b), measured from when the claim accrued. Registration comes first under 17 U.S.C. 411(a), so the clock and the registration process can overlap.
Discovery drives the trade secret clock. A civil action under 18 U.S.C. 1836(b) may not be commenced later than three years after the misappropriation is, or by reasonable diligence should be, discovered (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.
State-law claims, such as a claim under the Uniform Trade Secrets Act (SDCL 37-29-1 to 37-29-11) or a state trademark claim, have their own rules on limitation periods and on when a claim begins to run. Those are set by South Dakota statutes and court decisions, so the dates should be checked by an attorney rather than assumed from the federal deadlines.
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Steps That Strengthen a Claim Before It Is Needed
A business planning a brand can file for federal registration based on actual use in commerce (15 U.S.C. 1051(a)(1)) or based on a bona fide intention to use it (15 U.S.C. 1051(b)(1)).
A South Dakota business can ask an attorney whether a state-level trademark filing with the South Dakota Secretary of State is worth adding to a federal application. The provisions are in SDCL chapter 37-6, and the two registrations are separate.
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 Harrisburg Is Filed
Federal law fixes the forum for most intellectual property claims: exclusive federal jurisdiction over patents and copyrights (28 U.S.C. 1338(a)), original federal jurisdiction over Defend Trade Secrets Act claims (18 U.S.C. 1836(c)), and concurrent state jurisdiction over trademarks.
The federal court for Harrisburg is the District of South Dakota, which covers all of South Dakota (28 U.S.C. 122) and holds court in Aberdeen, Sioux Falls, Pierre, Deadwood, and Rapid City.
What South Dakota Law Can Add to Federal Protection
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 Harrisburg 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 Harrisburg 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.
The details of a state-law claim depend on the facts, and an attorney can explain which of the federal and state claims fit a particular dispute.
The Basics of Each Type of Claim
Claims That a Patent Is Being Infringed
Infringement occurs when someone, without authority, makes, uses, offers to sell, or sells any patented invention within the United States, or imports a patented invention into the United States, during the term of the patent (35 U.S.C. 271(a)).
The patent term is 20 years from the filing date (35 U.S.C. 154(a)(2)), so a case about an expired patent is limited to past infringement.
Confusing Similarity and Brand Protection
Infringement of a registered mark means using in commerce a reproduction, counterfeit, copy, or colorable imitation of the mark in connection with the sale, offering for sale, distribution, or advertising of goods or services where the use is likely to cause confusion, mistake, or deception (15 U.S.C. 1114(1)(a)).
A state registration in South Dakota (SDCL chapter 37-6) is different from federal registration on the principal register (15 U.S.C. 1051).
Copying of Creative Work
Creative disputes involve two threshold points: the work must be an original work of authorship fixed in a tangible medium (17 U.S.C. 102(a)), and the claim cannot rest on an idea or system (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
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.
Documents showing who had access, and what confidentiality steps existed, are among the first things to preserve.
Injunctions and Money Damages by Type of Claim
For patents, 35 U.S.C. 284 sets the damages floor at a reasonable royalty and lets the court increase damages up to three times the amount found or assessed, and 35 U.S.C. 283 allows injunctions according to the principles of equity, on terms the court considers reasonable.
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.
Registering early matters for remedies as well as for suing: statutory damages and attorney’s fees are barred for infringement that began before registration, except when a published work is registered within three months after first publication (17 U.S.C. 412).
In federal trade secret cases the court can enjoin actual or threatened misappropriation, award damages for loss and unjust enrichment or a reasonable royalty, and, for willful and malicious misappropriation, exemplary damages up to 2 times the damages awarded (18 U.S.C. 1836(b)(3)).
Was your work copied or your brand used without permission? Talk to an attorney in Lincoln County.
Documents and Dates That Help
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.
Patent matters go faster with drawings, lab notes, patent or application numbers, and a list of who has seen the invention. Trademark matters go faster with the mark itself, samples of its use, and any registration documents.
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.
Harrisburg: Courts, Counties, and Getting Started
Deadlines and definitions are the same across South Dakota, and the courthouse is not. A federal case from Harrisburg 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.
For the full list of South Dakota communities we serve, see our South Dakota intellectual property page. Nearby communities we serve include Tea, Sioux Falls, and Canton. For a personal injury rather than an intellectual property question, our Harrisburg personal injury page explains the South Dakota rules.
Frequently Asked Questions
Can a patent case be brought in South Dakota state court?
No. Patent claims are within the exclusive jurisdiction of the federal district courts (28 U.S.C. 1338(a)), so a case from Harrisburg is filed in the District of South Dakota.
Can I register a trademark before I start using it?
Yes, in one way: a person with a bona fide intention, under circumstances showing good faith, to use a trademark in commerce may request registration on the principal register (15 U.S.C. 1051(b)(1)).
Which court hears a copyright case from Harrisburg?
The federal district courts have original jurisdiction over copyright claims (28 U.S.C. 1338(a)). For Harrisburg, that is the District of South Dakota.
What if a former employee took confidential information?
That can be a trade secret claim if the information meets the definition in 18 U.S.C. 1839(3), and the federal deadline is three years from discovery (18 U.S.C. 1836(d)). An attorney can review what was taken and what protections were in place.
Where does the federal court for Harrisburg hold court?
The District of South Dakota holds court in Aberdeen, Sioux Falls, Pierre, Deadwood, and Rapid City (28 U.S.C. 122).
Can I register a trademark with the state of South Dakota?
Yes. A state registration is filed with the South Dakota Secretary of State under SDCL chapter 37-6, and it is a separate filing from the federal application.
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.
Speak With Someone Who Handles Cases Like Yours
An intellectual property matter is easier to handle with someone reading the documents alongside you. Submit the form to be connected with an attorney who can go over your work, the deadlines, and the court for Lincoln County.
