Ivan Hellquist — 4 Patents at Interspiro Ab

Ivan Hellquist has been granted 4 US patents while listed as an inventor at Interspiro Ab. The first was granted in 1989 and the most recent in September 1998. Ivan Hellquist ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Ivan Hellquist in Sollentuna, SE.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
5813400	Breathing apparatus	Pierre Buhlmann	1998-09-29
5080414	Locking device for attaching a gas cylinder in a portable cylinder holder	Erik Svantesson	1992-01-14
4926855	Respirator	Carl P. M. Muhlmann	1990-05-22
4887638	Regulator	Pierre Buhlmann	1989-12-19

Ivan Hellquist — 4 Patents

Issued Patents All Time

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