Robert R. Shaefer — 2 Patents at Nibco

Robert R. Shaefer has been granted 2 US patents while listed as an inventor at Nibco. The first was granted in 1984 and the most recent in April 1985. Robert R. Shaefer ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert R. Shaefer in Louisville, KY, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4514244	Plastic pipe elements and methods for making same	Kenneth J. Matthews	1985-04-30
4457542	Plastic pipe fitting	Kenneth J. Matthews	1984-07-03

Robert R. Shaefer — 2 Patents

Issued Patents All Time

Patent Widget