Leo Roos
15Patents
10h-index
19Co-inventors
69Inventor score
Filing activity: Jun 21, 1972 → Nov 19, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4273857A | Polymeric binders for aqueous processable photopolymer compositions | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4126466A | Composite, mask-forming, photohardenable elements | Physics | 33 | Expired |
| US4992354A | Dry film photoresist for forming a conformable mask and method of application to a printed circuit board or the like | Electricity | 20 | Expired |
| US4268610A | Photoresist formulations | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4889790A | Method of forming a conformable mask on a printed circuit board | Electricity | 15 | Expired |
| US5102491A | Wet lamination process and apparatus | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5213945A | Dry film photoresist for forming a conformable mask and method of application to a printed circuit board or the like | Electricity | 12 | Expired |
| US5164284A | Method of application of a conforming mask to a printed circuit board | Electricity | 12 | Expired |
| US4353978A | Polymeric binders for aqueous processable photopolymer compositions | Physics | 11 | Expired |
| US4297435A | Contrast colorant for photopolymerizable compositions | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5112428A | Wet lamination process and apparatus | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4894314A | Photoinitiator composition containing bis ketocoumarin dialkylamino benzoate, camphorquinone and/or a triphenylimidazolyl dimer | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4976817A | Wet lamination process and apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4943513A | Photoimageable composition with reduced cold flow due to salt-bridging by metal ions and dry film formed therefrom | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4019909A | Photohardenable vesicular image-forming elements | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.