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Your Wheaton 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 Wheaton. 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. These rules apply across Illinois, and an attorney familiar with the Northern District of Illinois 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)).
- Trademark claims can go to federal or state court (28 U.S.C. 1338(a)), and Illinois’s own registration is a separate filing with the Illinois Secretary of State.
- 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)).
- Where is my case filed? Wheaton is in the Northern District of Illinois, and that court holds court in Chicago, Wheaton, Freeport, and Rockford (28 U.S.C. 93).
Four Kinds of Intellectual Property and What Each Covers
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.
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.
Business and technical information such as plans, formulas, and processes qualifies as a trade secret only if the owner has taken reasonable measures to keep it secret and it derives independent economic value from secrecy (18 U.S.C. 1839(3)).
Why Timing Matters in Intellectual Property Disputes
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)).
Trade secrets: a federal action under the Defend Trade Secrets Act may not be commenced later than 3 years after the misappropriation is discovered or, with reasonable diligence, should have been discovered, and a continuing misappropriation counts as a single claim (18 U.S.C. 1836(d)).
Patent infringement damages reach back at most six years before the complaint (35 U.S.C. 286), so a suspected infringement is worth reviewing promptly.
State-law claims, such as a claim under the Illinois Trade Secrets Act (765 ILCS 1065/1 and following sections) or a state trademark claim, have their own rules on limitation periods and on when a claim begins to run. Those are set by Illinois statutes and court decisions, so the dates should be checked by an attorney rather than assumed from the federal deadlines.
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Federal and Illinois 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)).
State registration is a different filing from a federal application. In Illinois it is made with the Illinois Secretary of State under the Trademark Registration and Protection Act, 765 ILCS 1036, 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.
Federal District Courts and Where They Sit
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. 93, Illinois’s counties are grouped into three federal districts. For DuPage County, the court is the Northern District of Illinois, and it holds court in Chicago, Wheaton, Freeport, and Rockford.
How Illinois Law Fits In
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 Wheaton may also raise a claim under the Illinois Trade Secrets Act (765 ILCS 1065/1 and following sections). Which claims fit depends on the facts.
A state trademark registration in Illinois is a different filing from federal registration (15 U.S.C. 1051). It is made with the Illinois Secretary of State under the Trademark Registration and Protection Act, 765 ILCS 1036.
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 Infringement
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.
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.
Trademark and Unfair Competition Claims
For a registered mark, the core question is whether the defendant’s use of a reproduction, copy, counterfeit, or colorable imitation is likely to cause confusion, mistake, or deception in connection with goods or services (15 U.S.C. 1114(1)(a)).
A state registration in Illinois (the Trademark Registration and Protection Act, 765 ILCS 1036) is different from federal registration on the principal register (15 U.S.C. 1051).
Copying of Creative Work
For writing, images, music, or film, copyright protects the original expression fixed in a tangible medium (17 U.S.C. 102(a)) but never the underlying idea (17 U.S.C. 102(b)).
Federal district courts have original jurisdiction over copyright claims (28 U.S.C. 1338(a)).
Trade Secret Claims
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 Successful Claim Can Recover
Patent: a court that finds for the claimant shall award damages adequate to compensate for the infringement, but in no event less than a reasonable royalty for the use made of the invention, together with interest and costs, and the court may increase the damages up to three times the amount found or assessed (35 U.S.C. 284). Courts may also grant injunctions in accordance with the principles of equity to prevent the violation of a patent right (35 U.S.C. 283).
For trademark violations, the Lanham Act allows injunctions on terms the court considers reasonable (15 U.S.C. 1116(a)) and allows recovery, subject to equity, of the defendant’s profits, the plaintiff’s damages, and the costs of the action (15 U.S.C. 1117(a)).
Copyright: an infringer is liable for either the copyright owner’s actual damages and any additional profits of the infringer, or statutory damages (17 U.S.C. 504(a)). For statutory damages, the court may award a sum of not less than $750 or more than $30,000 per work as it 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.
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)).
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What to Gather Before You Talk to an Attorney
An attorney will usually begin with dates: creation, first disclosure, first use in commerce, first publication, and discovery of the problem. Gathering them ahead of time saves a first meeting for the questions that matter.
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.
Bring the original work and dated drafts for a copyright issue, and a description of the information, access records, and confidentiality measures for a trade secret issue.
Local Court Details for Wheaton
The rules on this page are national or statewide, but the practical details are local. For a Wheaton claim that means DuPage County and the Northern District of Illinois. Asking an attorney how long cases usually take there helps put the deadlines in context.
For a personal injury rather than an intellectual property question, our Wheaton personal injury page explains the Illinois rules. People in this part of the state also look to our pages for Downers Grove, Naperville, and Oak Brook. The Illinois intellectual property overview covers every city we serve across the state.
Frequently Asked Questions
What counts as patent infringement?
Without authority, making, using, offering to sell, or selling a patented invention in the United States, or importing one into the United States, during the term of the patent (35 U.S.C. 271(a)).
What is the difference between federal and Illinois trademark registration?
Federal registration is on the principal register through the Patent and Trademark Office (15 U.S.C. 1051). Illinois registration is a separate filing made with the Illinois Secretary of State under the Trademark Registration and Protection Act, 765 ILCS 1036, and it does not replace the federal one.
Which court hears a copyright case from Wheaton?
The federal district courts have original jurisdiction over copyright claims (28 U.S.C. 1338(a)). For Wheaton, that is the Northern District of Illinois.
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 to, and not being readily ascertainable through proper means by, another person (18 U.S.C. 1839(3)).
How many federal districts does Illinois have?
Illinois has three federal judicial districts: the Northern, Central, and Southern Districts of Illinois (28 U.S.C. 93).
Do federal deadlines apply to Illinois state-law claims?
Not automatically. Illinois state-law claims have their own limitation periods and accrual rules, set by Illinois 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).
Can I protect a business idea?
An idea by itself is not protected by copyright (17 U.S.C. 102(b)). An invention that fits a category in 35 U.S.C. 101 may be patentable, and confidential business information may qualify as a trade secret (18 U.S.C. 1839(3)).
Get Started With an Attorney in Wheaton
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.

