FH

Francis D. Haynes

UA US Army: 3 patents #993 of 6,974Top 15%
📍 Etna, NH: #14 of 37 inventorsTop 40%
🗺 New Hampshire: #4,150 of 12,181 inventorsTop 35%
Overall (All Time): #1,654,978 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5339893 Apparatus for containing toxic spills employing hybrid thermosyphons John P. Zarling, William F. Quinn 1994-08-23
5327734 Passive-active thermosyphon John P. Zarling, William F. Quinn 1994-07-12
4961463 Thermosyphon condensate return device Stephen L. DenHartog, John P. Zarling 1990-10-09