Alan D. Greenfield — 2 Patents at Leafpro

Alan D. Greenfield has been granted 2 US patents while listed as an inventor at Leafpro. The first was granted in 1984 and the most recent in October 1996. Alan D. Greenfield ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Alan D. Greenfield in Rotherham, MA, GB.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5564267	Raking and pick-up tool	James A. Bricker	1996-10-15
4481399	Welding of tubes to tube plates	—	1984-11-06

Alan D. Greenfield — 2 Patents

Issued Patents All Time

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