Wieland Sack
12Patents
6h-index
14Co-inventors
63Inventor score
Filing activity: Jul 8, 1977 → Jun 30, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4133688A | Photographic carrier material containing thermoplastic microspheres | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4364971A | Waterproof photographic paper and method of producing same | Physics | 35 | Expired |
| US4645736A | Waterproof photographic paper support | Textiles; Paper | 23 | Expired |
| US4729945A | Multilayer photographic support material | Physics | 15 | Expired |
| US4665013A | Photographic support materials containing coated pigment | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6156420A | Support material for image-recording processes | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4663236A | Coated photographic base material | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4952486A | Support material for thermally developable photographic layers | Physics | 3 | Expired |
| US4309486A | Electrostatic recording material | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4844777A | Water-resistant photographic paper support | Textiles; Paper | 3 | Expired |
| US5573636A | Recyclable support material | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5302572A | Multilayer image receiving material for thermal dye transfer and process for producing same | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.