Inventor

BUTLER JOHN ROBERT

US3 patents

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

BUTLER JOHN ROBERT

2 patents

US9194024B1Nov 24, 2015

Jewelry article of white precious metals and methods for making the same

BUTLER JOHN ROBERT7 citations74

US9217190B2Dec 22, 2015

Sterling silver alloy and articles made from same

BUTLER JOHN ROBERT2 citations53

STULLER INC

1 patent

US10697044B1Jun 30, 2020

Sterling silver alloy and articles made from the same

STULLER INC1 citations54