Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Photosensitive photographic material, a process for the production of photographic images, development baths and new hydroquinones

Photosensitive photographic material, a process for the production of photographic images, development baths and new hydroquinones

US Patent 4310621 · Granted Jan 12, 1982

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method and fastening device for fastening an assembly in an opening of a wall of2015
Color photographic silver halide material2002
SOLID COMPOSITION CONSISTING OF HETEROCYCLIC COMPOUNDS AND/OR OXIME ESTERS AND I2002
Color photographic silver halide material2002
Radiographic film material exhibiting increased covering power and “colder2002
Pipe-drilling fitting2001
Production of silver halide emulsions2001
Color photographic material2001
Color photographic recording material having a 2-equivalent magenta coupler and 2000
Color photographic silver halide material1999
Process for operating a fuel cell installation and fuel cell installation for ca1999
Use of heterocyclic compounds as activators for inorganic peroxy compounds1999