P

Inventor

DAY JOSEPH G

GB7 patents
⚠️ This page may combine multiple inventors who share the name “DAY JOSEPH G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

JOHNSON MATTHEY CO LTD

4 patents
US4428768AJan 31, 1984

Process for the recovery of platinum group metals from refractory ceramic substrates

JOHNSON MATTHEY CO LTD48 citations90
US4135923AJan 23, 1979

Extraction of metals

JOHNSON MATTHEY CO LTD20 citations80
US4244736AJan 13, 1981

Yttrium containing alloys

JOHNSON MATTHEY CO LTD9 citations71
US4177059ADec 4, 1979

Production of yttrium

JOHNSON MATTHEY CO LTD4 citations60

MATTHEY RUSTENBURG REFINES

2 patents
US4451290AMay 29, 1984

Recovery of platinum group metals from scrap and residues

MATTHEY RUSTENBURG REFINES11 citations72
US4448604AMay 15, 1984

Recovery of precious metals from leach residues

MATTHEY RUSTENBURG REFINES6 citations60

JOHNSON MATTHEY PLC

1 patent
US4427442AJan 24, 1984

Recovery of platinum group metals, gold and silver from scrap

JOHNSON MATTHEY PLC22 citations80