Inventor

FREY HANS

4 patents

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

CIBA GEIGY AG

2 patents

US4217304AAug 12, 1980

Continuous reduction process

CIBA GEIGY AG4 citations56

US4348334ASep 7, 1982

Process for producing the magnesium salt of 3-nitro-naphthalene-1,5-disulfonic acid (nitro-Armstrong's acid)

CIBA GEIGY AG1 citations47

METTLER INSTRUMENTE AG

1 patent

US4149605AApr 17, 1979

Scale with digital display

METTLER INSTRUMENTE AG16 citations64

METSO PAPER AG

1 patent

US7275707B2Oct 2, 2007

Conveying system for feeding paper reels to reel stands and method for operating the same

METSO PAPER AG0 citations40