Robert de Vries — 5 Patents at Unknown

Robert de Vries has been granted 5 US patents while listed as an inventor at Unknown. The first was granted in 1980 and the most recent in August 2018. Robert de Vries ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Robert de Vries in Rotterdam, NL.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
D826010	Multi-tool for kitchen	Alexander Cornelis van Druten	2018-08-21
6001773	Sprout inhibiting and/or anti-fungal composition for potatoes	—	1999-12-14
4727582	Hearing aid with adjustable flexible connection member	Roelof A. Venema, Johannes P. M. Damen	1988-02-23
4600223	Tube coupling	—	1986-07-15
4189142	Tennis racket	—	1980-02-19

Robert de Vries — 5 Patents

Issued Patents All Time

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