Frank Liu

📍 Houston, TX: #210 of 924 inventorsTop 25%

🗺 Texas: #885 of 4,134 inventorsTop 25%

Overall (1989): #114,498 of 140,708Top 85%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4879741	Fax/telephone switching device	—	1989-11-07