Inventor

STEIGER ROLF

CH26 patents

⚠️ This page may combine multiple inventors who share the name “STEIGER ROLF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

STEIGER ROLF

ILFORD IMAGING CH GMBH

Recording sheets for ink jet printing

Recording sheets for ink jet printing

Recording sheets for ink jet printing

Electrically active films

Recording sheets for ink jet printing

Recording sheet for ink jet printing

Recording sheets for ink jet printing

Recording sheets for ink jet printing

CIBA GEIGY AG

Spectral sensitization of photographic material and new spectral sensitizers

Spectral sensitization of photographic material with natural colloids containing sensitizing dye groups

Method of processing exposed photographic silver dye bleach materials comprising heating after processing liquid application

Photographic negative material with at least one layer containing a desensitized silver halide emulsion

Direct-positive photographic material

Novel sensitizers and their use in direct-positive photographic materials

Photographic material for the silver dye bleach process

Photographic material for the silver dye bleach process comprising an AZO dye, capable of laking, in gelatine

HEWLETT PACKARD DEVELOPMENT CO

Ink jet recording sheet with photoparity

Sulfur-containing inorganic media coatings for ink-jet applications

SUISSE ELECTRONIQUE MICROTECH

Assembly comprising J aggregates

Assembly comprising J-aggregates

ILFORD LTD

Monomethine compounds

Process for the spectral sensitization of photographic silver halide emulsions and products thereof

IFORD IMAGING SWITZERLAND GMBH

Recording sheets for ink jet printing

LOOMAN STEVEN D

Sulfur-containing inorganic media coatings for ink-jet applications

ILFORD AG

Process for spectral sensitization of a silver halide emulsion

LOSSON MYRIAM

Method for producing J aggregates