Which country’s brand is Bausch & Lomb?

Which country’s brand Bausch & Lomb is is explained below

Bausch & Lomb is a famous American manufacturer of eye care products. It is headquartered in Rochester, New York, USA. It mainly produces and sells eye care products, contact lenses, contact lens care drugs and eye surgery instruments, and is one of the world's major manufacturers. The founders were two German immigrants, John Jacob Bausch and Henry Lomb. In May 2007, the company was privatized by Warburg Pincus, an American private equity investment company, due to poor performance. _Bausch & Lomb is a global eye care company dedicated to helping consumers see better, look better, and feel better through innovative science and technology. Bausch & Lomb was founded in 1853, with annual turnover of nearly US$2 billion and approximately 11,500 employees in more than 50 countries around the world.