Design patents in the U.S. typically include two types of shading. The first and most common type of shading used in U.S. design patents is opaque shading, which illustrates a non-transparent or ...

Light can pass straight through transparent close transparentA material, object or substance which allows light to pass through it so that an image can be clearly seen through it. materials.

Researchers have made quite a striking advancement and have managed to create a microwave-proof material that can not only block microwaves but can also block infrared and light. Additionally, this ...