Robert E. Wiegert — 2 Patents at Water Refining

Robert E. Wiegert has been granted 2 US patents while listed as an inventor at Water Refining. The first was granted in 1980 and the most recent in June 1983. Robert E. Wiegert ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert E. Wiegert in Middletown, OH, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4387021	System for handling exhausted vermiculite cation exchange materials	Stephen H. Davis, James E. Etzel	1983-06-07
4235715	Process for removing alkalinity and hardness from waters	—	1980-11-25

Robert E. Wiegert — 2 Patents

Issued Patents All Time

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