Helena E. E. Petersen — 2 Patents at Unknown

Helena E. E. Petersen has been granted 2 US patents while listed as an inventor at Unknown. The first was granted in 2000 and the most recent in February 2001. Helena E. E. Petersen ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Helena E. E. Petersen in Amos, QC, CA.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D438347	Animal feeding and drinking trough with fittings	—	2001-02-27
6129049	Feeding device	Hans Rasmussen	2000-10-10

Helena E. E. Petersen — 2 Patents

Issued Patents All Time

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