Hoffmann-La Roche, A.G.
2Patents
0Active
2Granted
25Portfolio score
Filing activity: Sep 18, 1992 → Apr 7, 1995
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5480687A | Optical waveguide with a substantially planar substrate and process for its production | Physics | 47 | Expired |
| US5369722A | Optical inorganic waveguide with a substantially planar organic substrate | Physics | 37 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.