JH

John K. Hemingway

Overall (All Time): #2,247,216 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5879558 Water conserving reverse osmosis unit and method of operating it Jerry Monroe 1999-03-09
5639374 Water-conserving pressure-maintaining reverse osmosis system Jerry Monroe 1997-06-17