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Answer: A patent is a form of intellectual property. A U.S. patent is a right granted by the United States Patent and Trademark Office to an inventor to exclude others from making, using, selling, offering for sale, or importing an invention for a limited time. In the U.S., Patent law is driven by the language of the Patent Act, 35 U.S.C.

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Answer: A patent consists of an abstract, a description of the invention, disclosures of prior art, drawings, and one or more claims. The claims are the only truly enforceable part of a utility patent, and they define the property right owned by the patent holder. They are written in technical language, and must embody subject matter that is within the scope of patent law, is novel and is not obvious. The more broadly written the claims, the less likely they are to avoid rejection or invalidation on the grounds of obviousness or anticipation by prior technology. The more narrowly written, the less likely a competing technology or device infringes the claims. To infringe a patent, one must practice every element of a claim. If you do not practice one or more of the elements of a claim, then you do not infringe that claim.

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Answer: The origin of U.S. patent law can be found in the United States Constitution, Article I, Section 8, Clause 8, which provides that: "Congress shall have the power

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Answer: The Patent Act is codified at 35 U.S.C. 100 and following, available from http://www4.law.cornell.edu/uscode/35/pII.html.

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Answer: [not yet answered]

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Answer: Yes. Software technology development is highly incremental in nature and, as a result, truly unique designs, methods or approaches are rare. In addition, prior art with respect to software technology is not centralized or even easily discovered. However, patents can and do often issue on software-based technology that is not, in fact, novel. Computer technologies can be patented as processes (software), machines, even articles of manufacture (the CD containing the software, for example).

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Answer: For patents filed on June 8, 1995 or later, the protection lasts for 20 years from the date the patent application is filed. For patents filed prior to June 8, 1995, the term is 17 years from the date of issuance or 20 years from the date of application, whichever is longer.

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Answer: For years, software was considered outside the scope of patent protection to the extent based on mathematical algorithms, as mathematics is the basic working tool of contemporary science and technology and algorithms can be natural laws. In 1981, the Supreme Court held that software-related inventions are not per se to be excluded from patent protection simply because the process of performing the program's function may involve underlying mathematical algorithms. Software uses a non-physical process by operating electronically through the utilization of a mathematical equation (algorithm) to control the output of the computer program. Mathematical algorithms have a functional application in computer programs, and thus can be protected under the Patent Act. To use an example from physics, electricity was not patentable, but the way in which electricity transmits information may be patentable.

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Answer: If you are accused of patent infringement, you are accused of having made, sold or offered for sale an invention described in one of the claims of a valid patent, without the patent owner's authorization. To determine if infringement has occurred, a court will look at the patent's claims, interpret them, and compare them to your device, process, method etc. Infringement occurs if your accused item performs each of the elements of any of the claims. Note that you may be liable for inducing infringement or contributing to infringement, even if you did not directly infringe a patent, if you encourage or assist someone else to infringe a patent.

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Answer: Issued U.S. patents can be found on the United States Patent and Trademark Office website, at http://www.uspto.gov/patft/index.html. They are also available at patent depository libraries around the country. For more information on libraries, see http://www.uspto.gov/go/ptdl/.

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Answer: To qualify for patent protection, an invention must be new, useful and non-obvious.

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Answer: A patent owner may recover money damages in the form of a "reasonable royalty," which is the amount the patent holder could have earned in licensing the patented technology. Under certain circumstances, the patent owner may recover lost profits as an alternative measure of damages. The money damages amount may be tripled if the infringement is found to be "willful." The patent owner may also be entitled to enjoin further use and sale of the patented invention.

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Answer: A business method patent is a specific type of software patent on a computer implemented way of transacting business. As in the case of other software patents, business method patents can have process claims in the form of a sequence of steps comprising the business method carried out using a computer system, the system configuration defined by the software for carrying out the business method, or an article of manufacture, such as a CD having the software for carrying out the business method stored on it. Some business method patents are controversial because they appear to cover otherwise conventional business techniques, such as auctions, when implemented on the Internet or other networked computers. Other business method patents have been allowed without considering the best prior art and may be overbroad.

Patents have issued on methods and systems covering -- or purporting to cover -- such things as: all Internet-like browser/display systems (to Prodigy Services Company); reverse auctions over the Internet (to E-Bay); placing a purchase order via a communications network (the "one-click" patent to Amazon.com), and the like. Many computer program and so-called "business method" patents have been challenged as invalid and improvidently granted on the grounds that the innovation lacks sufficient uniqueness or inventiveness. Nonetheless, because a patent can confer broad and powerful rights upon its owner, and once issued is presumptively valid, patent owners are attempting to enforce their rights against rival software developers or website operators.

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Answer: There are two basic lines of defense: non-infringement and invalidity.

Non-infringement: To infringe a patent, one must practice every element of a claim. If you do not practice one or more of the elements of a claim, then you do not infringe that claim. This determination often rests on how a court interprets the language of the claims you are accused of infringing.

Invalidity: Only a valid patent can be enforced. Issued patents are presumed valid, but this presumption can be overcome if prior art exists that demonstrates an invention was not novel or that it was obvious at the time the patent application was filed. Especially in the case of software and Internet business method patents, articles disclosing or describing the patented inventions may exist in trade publications that would not have been found by the patent examiner and would not have been part of the prosecution file of an issued patent on file with the USPTO. The patent holder's failure to name all inventors may also invalidate a patent.

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Answer: It does not matter for liability purposes that a patented infringer was unaware of the patented technology when infringement occurred. However, willful or intentional infringement may carry a higher monetary penalty than innocent infringement.