“Desillus provides design and illustration service for intellectual property patent drawings with high quality in an optimal time frame”

The first U.S. patent was granted to Samuel Hopkins for a process of making potash, an ingredient used in fertilizer on July 31. President G

. The first U.S. design patent USD1S was granted by printer and industrialist George Bruce for a new typeface, or font. Design patents...

The Gregorian calendar was first introduced in 1582, but it took more than 300 years for all the different countries to change... Read More