1. Laser Pointer as Auxiliary Sight of Firearm
US Patent #7, 331,137
Inventor: Yao-Hsi Hsu
Filed: July 3, 2003
Published: February 19, 2008

2. What Do It Do?
Laser pointer mounted to a firearm to help the eyes aim at a target.
Laser spot can be manually adjusted to line up with a target after a few shots

3. What Came Before?/ What Makes This Better?
Mounted laser pointer aids for firearms already exist
Use a number of screws for alignment
tedious
New design can be adjusted using a single ring

4. What Do the Other Patents Say?
Blocks the user’s view
Difficult to mount
Imprecise alignment
Patent does not specify:
Type of laser pointer to be used
Scope of appropriate firearms
Rifle used as example

5. Applications