In a patent or patent application, the claims define, in technical terms, the extent, i.e. the scope, of the protection conferred by a patent, or the protection sought in a patent application. In other words, the purpose of the claims is to define which subject-matter is protected by the patent. This is termed as the "notice function" of a patent claim—to warn others of what they must not do if they are to avoid infringement liability. The claims are of the utmost importance both during prosecution and litigation alike.
In United States patent law, utility is a patentability requirement. As provided by 35 U.S.C. § 101, an invention is "useful" if it provides some identifiable benefit and is capable of use and "useless" otherwise. The majority of inventions are usually not challenged as lacking utility, but the doctrine prevents the patenting of fantastic or hypothetical devices such as perpetual motion machines.
Novelty is a requirement for a patent claim to be patentable. An invention is not new and therefore not patentable if it was known to the public before the filing date of the patent application, or before its date of priority if the applicant claims priority of an earlier patent application. The purpose of the novelty requirement is to prevent prior art from being patented again.
Neither software nor computer programs are explicitly mentioned in statutory United States patent law. Patent law has changed to address new technologies, and decisions of the United States Supreme Court and United States Court of Appeals for the Federal Circuit (CAFC) beginning in the latter part of the 20th century have sought to clarify the boundary between patent-eligible and patent-ineligible subject matter for a number of new technologies including computers and software. The first computer software case in the Supreme Court was Gottschalk v. Benson in 1972. Since then, the Supreme Court has decided about a half dozen cases touching on the patent eligibility of software-related inventions.
State Street Bank and Trust Company v. Signature Financial Group, Inc., 149 F.3d 1368, also referred to as State Street or State Street Bank, was a 1998 decision of the United States Court of Appeals for the Federal Circuit concerning the patentability of business methods. State Street for a time established the principle that a claimed invention was eligible for protection by a patent in the United States if it involved some practical application and, in the words of the State Street opinion, "it produces a useful, concrete and tangible result."
In United States patent law, the reduction to practice is the step in the formation of an invention beyond the conception thereof. Reduction to practice may be either actual or constructive. The date of reduction to practice was critical to the determination of priority between inventors in an interference proceeding under the discontinued first-to-invent system as well as for swearing behind a reference under that system.
Business method patents are a class of patents which disclose and claim new methods of doing business. This includes new types of e-commerce, insurance, banking and tax compliance etc. Business method patents are a relatively new species of patent and there have been several reviews investigating the appropriateness of patenting business methods. Nonetheless, they have become important assets for both independent inventors and major corporations.
In United States patent law, the on-sale bar is a limitation on patentability codified at 35 U.S.C. § 102. It provides that an invention cannot be patented if it has been for sale for over one year prior to the patent filing.
Under United States law, a patent is a right granted to the inventor of a (1) process, machine, article of manufacture, or composition of matter, (2) that is new, useful, and non-obvious. A patent is the right to exclude others, for a limited time from profiting of a patented technology without the consent of the patent-holder. Specifically, it is the right to exclude others from: making, using, selling, offering for sale, importing, inducing others to infringe, applying for an FDA approval, and/or offering a product specially adapted for practice of the patent.
In patent law, an inventor is the person, or persons in United States patent law, who contribute to the claims of a patentable invention. In some patent law frameworks, however, such as in the European Patent Convention (EPC) and its case law, no explicit, accurate definition of who exactly is an inventor is provided. The definition may slightly vary from one European country to another. Inventorship is generally not considered to be a patentability criterion under European patent law.
Parker v. Flook, 437 U.S. 584 (1978), was a 1978 United States Supreme Court decision that ruled that an invention that departs from the prior art only in its use of a mathematical algorithm is patent eligible only if there is some other "inventive concept in its application." The algorithm itself must be considered as if it were part of the prior art, and the claim must be considered as a whole. The case was argued on April 25, 1978 and was decided June 22, 1978. This case is the second member of the Supreme Court's patent-eligibility trilogy.
A concurrent use registration, in United States trademark law, is a federal trademark registration of the same trademark to two or more unrelated parties, with each party having a registration limited to a distinct geographic area. Such a registration is achieved by filing a concurrent use application and then prevailing in a concurrent use proceeding before the Trademark Trial and Appeal Board ("TTAB"), which is a judicial body within the United States Patent and Trademark Office ("USPTO"). A concurrent use application may be filed with respect to a trademark which is already registered or otherwise in use by another party, but may be allowed to go forward based on the assertion that the existing use can co-exist with the new registration without causing consumer confusion.
The Piano Roll Blues or Old Piano Roll Blues is a figure of speech designating a legal argument made in US patent law relating to computer software. The argument is that a newly programmed general-purpose digital computer is a "new" machine and, accordingly, properly the subject of a US patent.
In United States patent law, a composition of matter is one of the four principal categories of things that may be patented. The other three are a process, a machine, and an article of manufacture. In United States patent law, that same terminology has been in use since the first patent act in 1790.
In United States patent law, incredible utility is a concept according to which, in order for an invention to be patentable, it must have some credible useful function. If it does not have a credible useful function despite the assertions of the inventor, then the application for patent can be rejected as having "incredible utility". The invention does not have to work the way the inventor thinks it works, but it must do something useful. Patents that have been held invalid for incredible utility include:
Alice Corp. v. CLS Bank International, 573 U.S. 208 (2014), was a 2014 United States Supreme Court decision about patent eligibility. The issue in the case was whether certain patent claims for a computer-implemented, electronic escrow service covered abstract ideas, which would make the claims ineligible for patent protection. The patents were held to be invalid because the claims were drawn to an abstract idea, and implementing those claims on a computer was not enough to transform that abstract idea into patentable subject matter.
In re Lowry, 32 F.3d 1579 was a 1994 decision of the United States Court of Appeals for the Federal Circuit on the patent eligibility of data structures. The decision, which reversed a PTO rejection of data structure claims, was followed by a significant change in PTO policy as to granting software related patents, a cessation of PTO appeals to the Supreme Court from reversals of PTO rejections of software patent applications, an increasing lenity at the Federal Circuit toward such patents and patent applications, and a great increase in the number of software patents issued by the PTO.
In re Alappat, 33 F.3d 1526, along with In re Lowry and the State Street Bank case, form an important mid-to-late-1990s trilogy of Federal Circuit opinions because in these cases, that court changed course by abandoning the Freeman-Walter-Abele Test that it had previously used to determine patent eligibility of software patents and patent applications. The result was to open a floodgate of software and business-method patent applications, many or most of which later became invalid patents as a result of Supreme Court opinions in the early part of the following century in Bilski v. Kappos and Alice v. CLS Bank.
Versata Development Group, Inc. v. SAP America, Inc., 793 F.3d 1306, is a July 2015 decision of the Federal Circuit affirming the final order of the Patent Trial and Appeal Board (PTAB), the recently created adjudicatory arm of the United States Patent and Trademark Office (USPTO), invalidating as patent ineligible the claims in issue of Versata's U.S. Patent No. 6,553,350. This was the first case in the Federal Circuit reviewing a final order in a Covered Business Method (CBM) invalidation proceeding under the America Invents Act (AIA). The case set an important precedent by deciding several unsettled issues in the interpretation of the CBM provisions of the AIA>, including what are business-method patents under the AIA and whether the AIA authorizes the PTO to hold such patents invalid in CBM proceedings on the ground that they are patent ineligible under 35 U.S.C. § 101 as "abstract ideas."
This article incorporates public domain material from websites or documents of the United States Government .