Patent Law



What is Patent Law? It encompasses the branch of law that governs patents. U.S. patent laws were enacted by Congress under its Constitutional grant of authority to protect the discoveries of inventors. A patent is the grant of an exclusive property right to the inventor for the benefits of an invention or improvement, granted by the U.S. Patent & Trademark Office (USPTO), for a specific period of time. The invention or idea, by its nature, must be patentable; one skilled in the applicable field must be able to make and use the claimed invention; it must be new (novel) and has not been iterated; its originality must be obvious, meaning the idea cannot be something that anyone in the applicable field of expertise could have easily identified; and it must be useful. Patent law specialists can make a search of patents to determine if the proposed invention is truly unique, and if it appears to be, can file an application, including detailed drawings and specifications.

Only the inventor, or an attorney registered to practice before the USPTO, can prepare and submit a patent application. A legal document, which contains a detailed description of what the invention is and how to make or use it, is issued to the inventor (patentee), which gives the owner of the patent the right to exclude any other person from making, using, or selling the invention covered by the patent.

The USPTO offers the following types of patent applications: 1) utility, which includes a process, a machine, manufactured products, and compounds or mixtures (such as chemical formulas); 2) design, which is a new, original and ornamental design for a manufactured article; and 3) plant inventions, which are any distinct and new variety of cultivated asexually reproduced plants. The USPTO classifies applications for utility and plant inventions into provisional and non-provisional applications. Provisional patent applications may be filed for any invention that has not been publicly disclosed for more than one year from the date of filing. Provisional patent applications do not get examined by the USPTO, but are used as a vehicle to obtain a priority date and may be useful in obtaining “patent pending” status on ideas during final stages of development, or while raising capital or test marketing. The USPTO does not use provisional and non-provisional applications for design inventions. The Patent Cooperation Treaty (PCT) is an international agreement for filing patent applications. Although an inventor cannot obtain an international patent through the PCT, it does allow the inventor to file a single international patent application in order to simultaneously seek protection for an invention in over 125 countries worldwide.

The term of a new patent has changed over time and is currently 20 years from the earliest claimed filing date, but all three types of patents require payment of maintenance fees to keep them effective. Once the term has ended, if no extension has been filed and approved, the patented invention enters the public domain. Manufacture of a product upon which there is an existing patent is "patent infringement" which can result in a lawsuit against the infringer with substantial damages granted.

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Articles About Patent Law

  • The "Detailed Description" of an Invention
    As a basic requirement, the Detailed Description provides an enabling disclosure of the invention sufficiently adequate for an ordinary person skilled in the art to make and use the invention. So what does this legalese mean?
  • Patent Attorneys Protect Your Company’s Investments
    When you acquire a new headquarters for your business or a valuable, tangible asset to help your company grow, you naturally (and wisely) take steps to protect that asset or property with insurance and security. Many business owners, though, fail to take similar measures to protect their intangible assets.
  • What Are the Benefits of Patent Pending Status?
    It is well-known that patents can provide useful protection to a California business’s ideas and inventions. Even if you or another business owner are not completely clear on what specific protections and remedies are available to you as the holder of a patent, you generally know that a patent protects you from competitors or others who attempt to steal your ideas or inventions for their own gain.
  • Provisional Patents
    A provisional patent gives inventors time to prepare for their full patent application.
  • Protect Your Trademark in Brazil
    Although you might not think often about protecting your trademark rights in Brazil, you need to – even if you don’t yet have a single Brazilian customer.
  • The Detailed Description of an Invention for a Patent Application
    As a basic requirement, the Detailed Description provides an enabling disclosure of the invention sufficiently adequate for an ordinary person skilled in the art to make and use the invention. So what does this legalese mean?
  • Last Chance after Rejection by Patent Office
    Applications and patents granted through the Patent Office are complicated, take time and usually require a great deal of money for the patent itself. However, no matter if the applicant is through a company or an individual attempting to obtain the patent for his own invention, once the United States Patent and Trademark Office has given a rejection for the application, it must be known what to do next.
  • Registering and Defending Your IP
    Intellectual property most often needs both the standard and extra protection from theft, reproduction or those that would build upon the previous work. This is for multiple types of these works to include what a trademark safeguards. Defending the intellectual property from possible violations generally takes registration, a good lawyer and ensuring the information is used properly.
  • Patent Evaluations Completed by Expert Witnesses
    Patent evaluations are important to ensure the applications is unique and not the same as previous patents that already exist. This is because a patent for an invention gives the applicant the ability to use it exclusively with a process, product or similar item.
  • Current Trends in Patent Litigation and Expert Witnesses
    Litigation due to patent infringement is an ongoing problem, and it tends to rise during certain periods over time. Since 2012, the amount of lawsuits over these issues has been the highest in several decades due to various individuals seeking either the same patents or attempting to reproduce the items of a currently patented creation.
  • All Intellectual Property Law Articles

    Articles written by attorneys and experts worldwide discussing legal aspects related to Intellectual Property including: copyright, domain names, licensing law, patents, trade secrets and trademark.

Patent Law - United States

  • Patent and Trademark Law Center

    American Patent and Trademark Law Center is a professional association of independent registered patent attorneys and specializes in patent, trademark, copyright and related business and government contract matters, such as licenses.

  • Patent Cooperation Treaty

    The States party to this Treaty (hereinafter called "the Contracting States") constitute a Union for cooperation in the filing, searching, and examination, of applications for the protection of inventions, and for rendering special technical services.

  • Patent Law - Overview

    Patents grant an inventor the right to exclude others from producing or using the inventor's discovery or invention for a limited period of time. U.S. patent laws were enacted by Congress under its Constitutional grant of authority to protect thediscoveries of inventors.

  • Patent Law - Wikipedia

    United States patent law was established "to promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries;" as provided in the United States Constitution.

  • Patent Law Portal

    Our goal is to provide you with the most diverse and current resource center for the professional patent law community and inventors. The Patent Law Portal is the definitive guide for patent information required by inventors and patent professionals alike.

  • Trilateral Co-operation

    The Trilateral Co-operation was set up in 1983 between * the European Patent Office (EPO), * the Japan Patent Office (JPO) and * the United States Patent and Trademark Office (USPTO)

  • United States Patent Act

    The U.S. Patent Act is found in Title 35 of the U.S. Code and contains the federal statutes governing patent law in the United States.

  • United States Patent and Trademark Office

    The United States Patent and Trademark Office (USPTO) is the Federal agency for granting U.S. patents and registering trademarks.

Patent Law - International

Organizations For Patent Laws

Publications For Patent Laws




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