slide 2 of 6. When most people ask 'how long does a patent last', they are inquiring about utility patents. A utility patent is the patent granted for new machines, processes, products, and scientific formulas such as medicines or new elemental compounds.
The Stick. The largest part of the violin bow is the stick,with the best ones made of Pernambuco wood from Northeast Brazil, although carbon fiber is another quality choice.he Hair. The hair is the part of the violin bow that touches the strings and produces sound. Horse-hair is the traditional favorite, but synthetic hairs are also used for cheaper bows.
At the top of the violin, attached to the very top of the neck, there is a stylish scroll. It is typically carved in a spiral shape; however, some scrolls may be carved into the shape of an animal's head. This is primarily decorative and won't affect the sound of the instrument.