Inventor record

HOWARD CURTIS E

This page previously combined 2different people who filed under the same name. Pick the inventor you're looking for — each profile now covers one disambiguated person.

• 92Curtis E. Howard13 patent records·213 citations·E21B G06F F16K9 on this record
• 94Douglas G. Calvin15 patent records·246 citations·E21B F16K F16J1 on this record

Inventor identities via PatentsView disambiguation — see methodology.