Inventor record
HELVENSTON ANDREW BROWNE
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.
- 87Andrew Browne Helvenston12 patent records·31 citations·E21B F16K B24D11 on this record
- 11HELVENSTON ANDREW BROWNE1 patent record·0 citations·E21B1 on this record
Inventor identities via PatentsView disambiguation — see methodology.