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  2. Patent drawing - Wikipedia

    en.wikipedia.org/wiki/Patent_drawing

    A patent application or patent may contain drawings, also called patent drawings, illustrating the invention, some of its embodiments (which are particular implementations or methods of carrying out the invention), or the prior art. The drawings may be required by the law to be in a particular form, and the requirements may vary depending on ...

  3. Category:Images from US patents - Wikipedia

    en.wikipedia.org/.../Category:Images_from_US_patents

    A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but ...

  4. List of Nikola Tesla patents - Wikipedia

    en.wikipedia.org/wiki/List_of_Nikola_Tesla_patents

    U.S. patent 390,414 - Dynamo Electric Machine - 1888 October 2 - Related to the patents of Tesla and Charles F. Peck, numbers: US381968 and US382280; Ordinary forms of continuous and alternate current systems may be adapted to Tesla's system, with slight changes to the systems; Effects their forms; Only the best and most practical solutions are ...

  5. Prior art - Wikipedia

    en.wikipedia.org/wiki/Prior_art

    Prior art (also known as state of the art [1] or background art [2]) is a concept in patent law used to determine the patentability of an invention, in particular whether an invention meets the novelty and the inventive step or non-obviousness criteria for patentability.

  6. Design patent - Wikipedia

    en.wikipedia.org/wiki/Design_patent

    Design patents can be invalidated if the design is dictated solely by function (e.g. the outline of a key blade blank). Design patents are valid for 14 years from the date of issue if filed prior to May 13, 2015, or 15 years from the date of issue if filed on or after May 13, 2015. [14] [15] There are no maintenance fees.

  7. List of Edison patents - Wikipedia

    en.wikipedia.org/wiki/List_of_Edison_patents

    patent number – name of patent (external links to patent images in TIFF format) Electrographic Vote-Recorder. U.S. patent 0,090,646 – Electrographic Vote-Recorder : Edison's first patent. Permitted a "yes" or "no" vote via one of two switches. Washington congressmen were not interested in the device and the invention was unsuccessful. (1869)

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