In 1572, during the reign of Queen Elizabeth I of England, a patent application was filed for a knife with a bone handle rather than a wooden one. Would this patent be granted under current U.S. law?...

In 1572, during the reign of Queen Elizabeth I of England, a patent application was filed for a knife with a bone handle rather than a wooden one. Would this patent be granted under current U.S. law?

Research Corp. applied for a patent for a so-called halftoning technique that uses a mathematical formula to enable monitors and printers with limited color options to simulate a wider range of colors. Is this technique patentable?