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Ellene Alice Bailey, ca. 1893 E.A. Bailey powder puff design, U.S. patent no. 471,680, 1892. Ellene Alice Bailey (1853 – July 22, 1897) was an American designer and inventor specializing in clothing and household goods. She patented over a dozen of her many inventions. [1]
Design patents cover the ornamental appearance of an item. 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.
3D printing, or additive manufacturing, is the construction of a three-dimensional object from a CAD model or a digital 3D model. [1] [2] [3] It can be done in a variety of processes in which material is deposited, joined or solidified under computer control, [4] with the material being added together (such as plastics, liquids or powder grains being fused), typically layer by layer.
The 100 known most prolific inventors based on worldwide utility patents are shown in the following table. While in many cases this is the number of utility patents granted by the United States Patent and Trademark Office, it may include utility patents granted by other countries, as noted by the source references for an inventor.
This technology was first developed at the Massachusetts Institute of Technology and patented in 1993. In 1996, the ExOne Company was granted an exclusive field-of-use patent for the technology, [2] while Z Corporation, which was later acquired by 3D Systems, [3] obtained a non-exclusive patent for use of the technology for metal casting purposes. [4]
Sheet metal embossing is a metalworking process for producing raised or sunken designs or relief in sheet metal.In contrast to coining (which uses unmatched dies), embossing uses matched male and female dies [1] to achieve the pattern, either by stamping, or by passing a sheet or strip of metal between patterned rollers. [2]
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