RH

Robert W. Hayman

📍 Elizabeth City, NC: #5 of 45 inventorsTop 15%
🗺 North Carolina: #14,587 of 45,564 inventorsTop 35%
Overall (All Time): #1,558,698 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7886616 In-line flow meter — 2011-02-15
6898987 Flow meter — 2005-05-31
5992230 Dual rotor flow meter Thomas J. Scarpa, Kenneth R. Hoffer 1999-11-30