Inventor

PIERMAN DAVID A

US3 patents

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

STANDARD OIL CO OHIO

2 patents

US4857395AAug 15, 1989

Graphite composites and process for the manufacture thereof

STANDARD OIL CO OHIO23 citations79

US4923578AMay 8, 1990

Graphite composites and process for the manufacture thereof

STANDARD OIL CO OHIO5 citations60

EVANS RYAN D

1 patent

US8727627B2May 20, 2014

Apparatus and method for controlled release of lubricant additives in bearing and gear assemblies

EVANS RYAN D0 citations41