Robert C. Postma — 2 Patents at Hach

Robert C. Postma has been granted 2 US patents while listed as an inventor at Hach. The first was granted in 1989 and the most recent in December 1990. Robert C. Postma ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert C. Postma in Towaco, NJ, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4978568	Flexible writing surface	—	1990-12-18
4876967	Transporter for plant trays	—	1989-10-31

Robert C. Postma — 2 Patents

Issued Patents All Time

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