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Otis King's patent calculator, model K; Photo by Richard Lyon. Otis Carter Formby King (1876–1944) was an electrical engineer [1] in London who invented and produced a cylindrical slide rule with helical scales, primarily for business uses initially. The product was named Otis King's Patent Calculator, and was manufactured and sold by Carbic ...
Patent number 443555 published 2 May 1927. [14] The patent was also applied in England [15] and Switzerland [16] in 1927. It consisted of a watch contained within a rectangular case. The timepiece own case, comprising movement, dial, winding and hand-setting mechanism, forms an autonomous unit which in turn is enclosed by a two-part metal case.
Uploader determined values for 2021 and 2022 by obtaining Google Patent listings of patents issued on the first Tuesday of 2021, 2022, and 2023, and performing simple subtraction of lowest-value patent numbers. (All U.S. patents have issue dates on Tuesdays.)
The farm, now operated as the Willard House and Clock Museum, had been built in 1718 by the Willards' third American generation. When Simon Willard was born, the house had just one room. The elder brother, Benjamin, who was 10 years older than Simon, learned horology and opened a workshop adjacent to the house in 1766. It is presumed that the ...
A comparatively small number of models (4,000) were the property of the Rothschild Patent Museum until 2015, when they were transferred to Hagley Museum and Library, forming a part of the museum's collection of patent models. With over 5,000 models, the Hagley's is the largest private collection, and second in size only to the Smithsonian's.
The patent rolls comprise a register of the letters patent issued by the Crown, and sealed "open" with the Great Seal pendent, expressing the sovereign's will on a wide range of matters of public interest, including – but not restricted to – grants of official positions, lands, commissions, privileges and pardons, issued both to individuals and to corporations.
Opened in 2015, The Bryan Museum, located in the historic Galveston Orphans Home [1] in Galveston, Texas, US, houses The Bryan Collection, one of the world's largest collections of historical artifacts, documents, and artwork relating to Texas and the American West. Assembled by J.P. and Mary Jon Bryan, the collection spans more than 12,000 ...
In 2004, i.e. in the early years of Espacenet, Nancy Lambert considered that, although free, Espacenet, like the United States Patent and Trademark Office (USPTO) database of US patents, "still tend[ed] to have primitive search engines and in some cases rather cumbersome mechanisms to download patents."