Willem Arthur Adriaan van Os

AN Akzo N.V.: 1 patents #342 of 803Top 45%

📍 Le Rouret, FR: #24 of 46 inventorsTop 55%

Overall (All Time): #2,276,756 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5494047	Intrauterine contraceptive device	—	1996-02-27
4690136	Assembly of intra-uterine contraceptive device and insertor	—	1987-09-01