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A patent applicant may include a copyright notice or mask work notice, but only if it also includes the following authorization, expressly permitting the reproduction of the patent: [9] A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection.
A design patent is the strongest system of protection, but the most uncommon. It is the only US legal precedent that protects the actual design (the design of the individual shapes of the letters) of the font. [19] The Lucida font family was one group that was formerly protected by design patent. [19]
A software patent is a patent on a piece of software, such as a computer program, library, user interface, or algorithm.The validity of these patents can be difficult to evaluate, as software is often at once a product of engineering, something typically eligible for patents, and an abstract concept, which is typically not.
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 ...
Software copyright is the application of copyright in law to machine-readable software. While many of the legal principles and policy debates concerning software copyright have close parallels in other domains of copyright law, there are a number of distinctive issues that arise with software.
The court applied the Abstraction-Filtration-Comparison, three-step test to determine whether substantial similarity is met when proving copyright infringement for non-literal elements of software, and it held that Altai's rewritten code did not meet the requirements for copyright infringement, and vacated and remanded the ruling on trade ...
The concrete effect of strong vs. weak copyleft has yet to be tested in court. [26] Free-software licenses that use "weak" copyleft include the GNU Lesser General Public License and the Mozilla Public License. The GNU General Public License is an example of a license implementing strong copyleft.
Probably the most successful was the anti-software-patent campaign in Europe that resulted in the rejection by the European Parliament of the Proposed directive on the patentability of computer-implemented inventions which, the free software community argues, would have made software patents enforceable in the European Union.