Dr. Ming Wang Donated Two US Patents to the Public. Right Now, It Is a 5 Billion Dollar Business
By Max Li, May 18, 2026, grassrootecho.com
Dr. Ming Wang is a personal friend of mine, and one thing I can say from knowing him is this: he is truly unselfish. His story of the amniotic membrane contact lens, or AMCL, is not only a story of medical invention. It is a story of what can happen when an inventor decides that healing people matters more than owning every possible benefit.
The AMCL technology was designed to help the surface of the eye heal. According to Wang Vision's AMCL page, Dr. Wang invented the technology, published scientific work about it, and obtained two U.S. patents: U.S. Patent Nos. 5,932,205 and 6,143,315. The same page describes AMCL as a natural healing lens that uses the scarless fetal wound-healing properties of the amniotic membrane to help damaged ocular surfaces recover.
What makes the story extraordinary is not only the invention. It is what Dr. Wang chose to do with it.


















