A patent is extended to an novel invention such as the ErgoPost (patent no: US 7,566825 B2, July 28, 2009). The ErgoPost was patented by Dr. Terry Ewell and a colleague, Richard Spencer, with the United States Patent & Trademark Office after a lengthy (and expensive) process. Here is one of the figures in the application:
Here is a picture of the device:
The ErgoPost is a device that mounts on the bassoon, the instrument performed by Dr. Ewell. Here the device is shown on the instrument holding up the hand.
Below is the trademark for Ergopost. A trademark is a symbol of the product. Notice the "TM" on the figure:
Further reading (not required): the patent for ErgoPost with the United States Patent & Trademark Office website. ErgoPost website.