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Your Fond du Lac Intellectual Property Attorney
A patent, a trademark, a copyright, and a trade secret are four different things with four different sets of rules. For a Fond du Lac business, artist, or inventor, the first step is knowing which one is actually involved, and this page walks through how to tell. The sections that follow cover what patents, trademarks, copyrights, and trade secrets protect, the filing deadlines, registration, the federal courts for Fond du Lac County, Wisconsin’s own trademark and trade secret rules, and what an infringement claim involves. Talking with an attorney who works in the Eastern District of Wisconsin can turn these general rules into a plan for your matter.
Quick Answers on Patents, Trademarks, Copyrights, and Trade Secrets
- Patents belong in federal court. Federal district courts have original jurisdiction over patent claims (28 U.S.C. 1338(a)), and damages cannot reach back more than six years before the complaint (35 U.S.C. 286).
- Trademarks can be registered federally and in Wisconsin. The federal register is set up by 15 U.S.C. 1051, and state registration is filed with the Wisconsin Department of Financial Institutions under Wis. Stat. chapter 132.
- 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)).
- What is a trade secret? Information the owner has taken reasonable measures to keep secret and that derives independent economic value from not being generally known (18 U.S.C. 1839(3)).
- Federal district: for Fond du Lac County, the Eastern District of Wisconsin under 28 U.S.C. 130, holding court in Green Bay, Milwaukee, and Oshkosh.
Four Kinds of Intellectual Property and What Each Covers
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)).
A trademark identifies and distinguishes goods and their source. The statute defines it as any word, name, symbol, or device, or any combination, used by a person, or which a person has a bona fide intention to use in commerce and applies to register, to identify and distinguish that person’s goods from those manufactured or sold by others and to indicate the source (15 U.S.C. 1127). A service mark does the same for services.
Copyright protects expression, not ideas. The subject matter is original works of authorship fixed in a tangible medium (17 U.S.C. 102(a)), and protection does not extend to any idea, procedure, process, system, or method of operation, however it is described (17 U.S.C. 102(b)).
Unlike a patent, a trade secret is kept private. The federal definition requires reasonable secrecy measures and independent economic value from not being generally known or readily ascertainable through proper means (18 U.S.C. 1839(3)).
Deadlines for Intellectual Property Claims
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 (Wis. Stat. 134.90) or a state trademark claim, have their own rules on limitation periods and on when a claim begins to run. Those are set by Wisconsin 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)).
State registration is a different filing from a federal application. In Wisconsin it is made with the Wisconsin Department of Financial Institutions under Wis. Stat. chapter 132, and an attorney can tell you whether a state filing, a federal filing, or both suit your plans.
Owners of creative work should know that registration is a precondition to suing on a United States work (17 U.S.C. 411(a)), and that the duration for most later works is the life of the author plus 70 years (17 U.S.C. 302(a)).
The filing date is what starts the patent clock (35 U.S.C. 154(a)(2)), so the timing of an application matters. An attorney can advise whether the invention fits the categories in 35 U.S.C. 101.
Which Court Handles a Claim From Fond du Lac
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.
Wisconsin is divided into two federal judicial districts (28 U.S.C. 130). Fond du Lac County is in the Eastern District of Wisconsin, which holds court in Green Bay, Milwaukee, and Oshkosh.
Trade Secrets and Trademarks Under Wisconsin Law
Wisconsin has a trade secret statute of its own, the Uniform Trade Secrets Act (Wis. Stat. 134.90). A trade secret dispute from Fond du Lac 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)).
A brand owner in Fond du Lac may have state-law options in addition to federal ones. Wisconsin’s trademark registration provisions are found in Wis. Stat. chapter 132, and the filing office is the Wisconsin Department of Financial Institutions.
Choosing between state and federal claims, or bringing both, is something an attorney should decide after reviewing what happened and what proof exists.
The Claims Behind Most Intellectual Property Disputes
Patent Claims and Defenses
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)).
Both patent owners and people accused of infringing should collect the patent number, product samples, and dates early.
Trademark 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.
Trademark claims may be filed in federal court or in state court (28 U.S.C. 1338(a)).
Disputes Over Writing, Images, Music, and Film
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).
The duration of a copyright for a work created on or after January 1, 1978 is generally the life of the author plus 70 years (17 U.S.C. 302(a)).
Disputes Over Trade Secrets
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).
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)).
What a Court Can Award or Order
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).
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)).
Delay in registering can cost more than time. Infringement that starts before the effective date of registration generally cannot support statutory damages or attorney’s fees, with the exception in 17 U.S.C. 412 for registration within three months 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)).
Facing an infringement dispute in Fond du Lac? Find out where your matter stands.
Documents and Dates That Help
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.
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 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.
Local Court Details for Fond du Lac
If you are protecting or defending intellectual property in Fond du Lac, a case that belongs in federal court is filed in the Eastern District of Wisconsin. An attorney who works in that court regularly can explain how its schedule and practices affect the deadlines above.
If the matter involves a crash, a fall, or another injury, our Fond du Lac personal injury attorney page is the better fit. Nearby communities we serve include Oshkosh, Neenah, and West Bend. You can browse every Wisconsin city we cover in our Wisconsin intellectual property attorney directory.
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).
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)).
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)).
What do I have to show to protect a trade secret?
The two elements of the definition: that you took reasonable measures to keep the information secret, and that it has independent economic value from not being generally known or readily ascertainable (18 U.S.C. 1839(3)).
How many federal districts does Wisconsin have?
Wisconsin has two federal judicial districts: the Eastern and Western Districts of Wisconsin (28 U.S.C. 130).
Does Wisconsin law protect trade secrets?
Yes. Wisconsin has the Uniform Trade Secrets Act (Wis. Stat. 134.90), 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).
Can I protect a logo or slogan?
A word, name, symbol, or device used to identify and distinguish goods or services and indicate their source can be a trademark or service mark (15 U.S.C. 1127).
Talk to an Attorney About Your Fond du Lac Matter
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 Fond du Lac County.

