Robert H. Leitheiser — 2 Patents at Freeman Chemical

Robert H. Leitheiser has been granted 2 US patents while listed as an inventor at Freeman Chemical. The first was granted in 1982 and the most recent in January 1990. Robert H. Leitheiser ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert H. Leitheiser in Crystal Lake, IL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4892919	Terephthalic containing hybrid castable resins	Joan E. Karloske	1990-01-09
4361613	Composite construction materials with improved fire resistance	Ben R. Bogner, Keith B. Bozer, William R. Dunlop	1982-11-30	$4,633,000

Robert H. Leitheiser — 2 Patents

Issued Patents All Time

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