Current machines feed from a sealed cartridge which is normally a proprietary design.
The smaller air vessels are a proprietary design that took some heavy research to perfect.
Miller announced in December 1989 that the company would start to embrace established software standards, rather than use traditional proprietary designs.
The compression technique has been used in both standardized and proprietary designs.
The company now markets a series of work stations it calls document processors that are based on a proprietary design.
Some families have proprietary designs, although this is relatively rare.
The original muzzle-brake was a proprietary design with four vents (two on each side) for increased control.
These are proprietary designs having special characteristics which suit them to a variety of applications.
The Beehaus is a proprietary design for a beehive launched in 2009.
So Intel has tried, and essentially failed, several times to create "something new" that would replace the x86 with their own proprietary design.