Inventor

OLKKONEN DAVID MICHAEL

US3 patents

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

METALS TECH DEVELOPMENT COMPANY LLC

2 patents

US9945006B2Apr 17, 2018

Processes for recovering non-ferrous metals from solid matrices

METALS TECH DEVELOPMENT COMPANY LLC2 citations61

US10533238B2Jan 14, 2020

Processes for recovering non-ferrous metals from solid matrices

METALS TECH DEVELOPMENT COMPANY LLC0 citations40

MACCAGNI MASSIMO GIUSEPPE

1 patent

US8715483B1May 6, 2014

Process for the recovery of lead from lead-bearing materials

MACCAGNI MASSIMO GIUSEPPE0 citations34