Artur Fischer from plastic materials (Polyamide) and is available in various shapes and sizes since 1958 (see Wall plug). Fischer held over 1100 patents and overtook Thomas Alva Edison, who held 1093 patents. Fischer also held 5867 trade rights and invented fischertechnik. Further inventions are (bone-)plugs for fixing bone fractures and one of Fischer’s most recent inventions is a gadget that makes it possible to hold and cut the top off an egg of any size. He got started on the problem when a hotel owner complained to him that his guests, on opening their boiled eggs for breakfast, always made a
Biological patents in the United States include adrenaline, insulin, vitamin B, and gene patents. However, the US Supreme Court ruled in 2013 that mere isolation by itself is not sufficient for something to be deemed inventive subject matter. The United States has been patenting chemical compositions based upon human products for over 100 years. The first patent for a human product was granted on March 20, 1906, for a purified form of adrenaline. It was challenged and upheld in "Parke-Davis v. Mulford". Judge Hand argued that natural substances when they are purified are more useful than the original natural substances. The 1970s marked the first time