Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
KH

Keith E. Hatfield — 1 Patent

Dover, NH: #164 of 261 inventorsTop 65%
New Hampshire: #7,386 of 12,181 inventorsTop 65%
Overall (All Time): #3,346,780 of 4,157,543Top 85%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7323991 System and method for locating and communicating with personnel and equipment in a facility David D. Eckert, Evan J. Bontemps, Paul D. Carey, III, Richard E. Goodwin, Joseph P. Lorenz +3 more 2008-01-29