Fill Out The Form To Be Connected Instantly to the Patent Infringement Attorney Needed In Your Case!
Ready to talk to someone about an intellectual property matter in Plymouth? The form above connects you directly, no need to read everything below first.
Your Plymouth 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 Plymouth. This page covers the deadlines, the definitions that decide whether something is protected, the federal district court for Grafton County, and the New Hampshire rules that sit next to the federal ones. The facts of your situation decide which area of law controls, and an attorney who practices in federal court can sort that out quickly.
Deadlines and Courts: The Short Version
- 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 New Hampshire’s own registration is a separate filing with the New Hampshire Secretary of State.
- Register first, sue second. No civil action for infringement of the copyright in a United States work can be instituted until registration has been made or refused in the way the statute provides (17 U.S.C. 411(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)).
- Federal district: for Grafton County, the District of New Hampshire under 28 U.S.C. 109, holding court in Concord and Littleton.
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)).
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)).
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)).
Time Limits That Matter in Patent, Copyright, and Trade Secret Cases
Copyright: a civil action must be commenced within three years after the claim accrued (17 U.S.C. 507(b)). Because a United States work must also be registered before an infringement suit can be filed (17 U.S.C. 411(a)), the registration step should not be left until after the dispute begins.
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)).
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)).
Claims under New Hampshire law carry their own limitation periods and their own rules for when the clock starts, which are different questions from the federal deadlines in this section. Have the dates checked before relying on any of them.
Protecting your work in Plymouth? Get matched with an attorney now.
What to Do Before a Dispute Starts
Federal trademark registration is available both to owners of a mark already used in commerce (15 U.S.C. 1051(a)(1)) and to a person with a bona fide intention, in good faith, to use a mark in commerce (15 U.S.C. 1051(b)(1)), through an application and a verified statement filed with the Patent and Trademark Office.
In addition to the federal register, a business in New Hampshire can file for a state trademark registration with the New Hampshire Secretary of State (see the Model State Trademark Act, RSA chapter 350-A). The state filing is a separate process from the federal application.
Copyright exists without a filing, but a lawsuit about a United States work requires preregistration or registration first (17 U.S.C. 411(a)). The standard term for a work created on or after January 1, 1978 is the life of the author and 70 years after the author’s death (17 U.S.C. 302(a)).
A patent application starts the 20-year term (35 U.S.C. 154(a)(2)), and the invention must fit a statutory category such as a process, machine, manufacture, or composition of matter (35 U.S.C. 101). An attorney can review both points before you file.
Which Court Handles a Claim From Plymouth
In practice, patent and copyright disputes are filed in federal district court (28 U.S.C. 1338(a)), federal trade secret claims start there as well (18 U.S.C. 1836(c)), and a trademark dispute can be filed in federal or state court.
New Hampshire constitutes one federal judicial district, the District of New Hampshire (28 U.S.C. 109), so a federal case from Plymouth is filed there. The court holds court in Concord and Littleton.
Trade Secrets and Trademarks Under New Hampshire Law
New Hampshire has a trade secret statute of its own, the Uniform Trade Secrets Act (RSA 350-B:1 to 350-B:9). A trade secret dispute from Plymouth 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)).
Trademark protection has a state layer as well. A state trademark registration in New Hampshire is filed with the New Hampshire Secretary of State under the Model State Trademark Act, RSA chapter 350-A, and it is separate from federal registration on the principal register (15 U.S.C. 1051).
Which claims to bring, and in which court, is a strategy question for an attorney who can read the documents.
Types of Intellectual Property Claims
Patent Disputes
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)).
Damages are limited to infringement within the six years before the complaint (35 U.S.C. 286).
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 New Hampshire (the Model State Trademark Act, RSA chapter 350-A) is different from federal registration on the principal register (15 U.S.C. 1051).
Disputes Over Writing, Images, Music, and Film
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)).
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)).
Confidential Information and Departing Employees
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.
Remedies in Intellectual Property Cases
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.
The trademark remedies are set out in 15 U.S.C. 1116(a), which gives courts the power to grant injunctions, and 15 U.S.C. 1117(a), which lets a plaintiff recover defendant’s profits, damages, and costs once a violation is established.
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).
Relief under 18 U.S.C. 1836(b)(3) includes an injunction, compensatory damages or a reasonable royalty, exemplary damages of up to 2 times for willful and malicious misappropriation, and reasonable attorney’s fees to the prevailing party when the statute’s conditions are met.
Have questions about a patent, trademark, copyright, or trade secret? Connect with an attorney.
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.
Useful patent records include sketches, notebooks, prototypes, and application numbers. Useful trademark records include the logo or name, packaging or signage showing use, and state or federal registration papers.
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.
A Note on Plymouth and the Federal Court
The rules on this page are national or statewide, but the practical details are local. For a Plymouth claim that means Grafton County and the District of New Hampshire. Asking an attorney how long cases usually take there helps put the deadlines in context.
Our New Hampshire intellectual property hub brings together the state’s rules and every city page in one place. Our coverage in this part of New Hampshire also includes Ashland, Campton, and Bristol. Injury claims follow different rules, covered on our Plymouth personal injury attorney page.
Frequently Asked Questions
Where is a patent infringement case filed?
In federal district court. The district courts have original jurisdiction of civil actions arising under patent law, and that jurisdiction is exclusive (28 U.S.C. 1338(a)). For Plymouth, that is the District of New Hampshire.
What is trademark infringement?
For a registered mark, it is using in commerce a reproduction, counterfeit, copy, or colorable imitation in connection with goods or services where the use is likely to cause confusion, mistake, or deception (15 U.S.C. 1114(1)(a)).
Which court hears a copyright case from Plymouth?
The federal district courts have original jurisdiction over copyright claims (28 U.S.C. 1338(a)). For Plymouth, that is the District of New Hampshire.
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)).
Do I have to file in federal court?
For patents and copyrights, yes: the federal jurisdiction is exclusive (28 U.S.C. 1338(a)). Trademark claims may also be brought in state court, and a federal trade secret action is filed in federal district court (18 U.S.C. 1836(c)).
Does New Hampshire law protect trade secrets?
Yes. New Hampshire has the Uniform Trade Secrets Act (RSA 350-B:1 to 350-B:9), 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).
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.
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 Plymouth and what the next few weeks may involve.

