Assignee
HANS RUDOLPH INC
21 granted patents·1 pending application·2,442 citations·filing 1987–2022
Top patents by PatentIndex Score
22 records- 0198USD334633SMaskHANS RUDOLPH INC·Filed 1991·Granted Apr 6, 1993·213 cites·1 claims
- 0298USD300272SThree-way T-shaped respiratory valve with dual balloonHANS RUDOLPH INC·Filed 1987·Granted Mar 14, 1989·74 cites·1 claims
- 0398USD300271SThree-way T-shaped respiratory valve with single balloonHANS RUDOLPH INC·Filed 1987·Granted Mar 14, 1989·72 cites·1 claims
- 0497USD385960SNasal maskHANS RUDOLPH INC·Filed 1996·Granted Nov 4, 1997·87 cites·1 claims
- 0596US6192886B1Nasal maskHANS RUDOLPH INC·Filed 1996·Granted Feb 27, 2001·613 cites·1 claims
- 0695USD305165STwo way check respiratory valveHANS RUDOLPH INC·Filed 1987·Granted Dec 19, 1989·48 cites·1 claims
- 0794US5538000AAirflow delivery systemHANS RUDOLPH INC·Filed 1995·Granted Jul 23, 1996·431 cites·20 claims
- 0894US5265595AMask for breath analysisHANS RUDOLPH INC·Filed 1993·Granted Nov 30, 1993·449 cites·4 claims
- 0994US5060655APneumotachHANS RUDOLPH INC·Filed 1988·Granted Oct 29, 1991·81 cites·7 claims
- 1087USD300273SFour way respiratory valve with dual balloonHANS RUDOLPH INC·Filed 1987·Granted Mar 14, 1989·25 cites·1 claims
- 1183US6082360AMask with gel sealHANS RUDOLPH INC·Filed 1997·Granted Jul 4, 2000·276 cites·8 claims
- 1265USD477074SMaskHANS RUDOLPH INC·Filed 2002·Granted Jul 8, 2003·15 cites·1 claims
- 1359USD300274SFour way respiratory valveHANS RUDOLPH INC·Filed 1987·Granted Mar 14, 1989·8 cites·1 claims
- 1456USD300270SFour-way T-shaped respiratory valveHANS RUDOLPH INC·Filed 1987·Granted Mar 14, 1989·7 cites·1 claims
- 1553USD306086SFive way respiratory valveHANS RUDOLPH INC·Filed 1987·Granted Feb 13, 1990·6 cites·1 claims
- 1652USD303586SThree way Y-shaped respiratory valveHANS RUDOLPH INC·Filed 1987·Granted Sep 19, 1989·6 cites·1 claims
- 1752USD301774SRespiratory maskHANS RUDOLPH INC·Filed 1987·Granted Jun 20, 1989·8 cites·1 claims
- 1850USD1104261SHandle for cylindersHANS RUDOLPH INC·Filed 2022·Granted Dec 2, 2025·1 cites·1 claims
- 1950USD573709SRespiratory maskHANS RUDOLPH INC·Filed 2007·Granted Jul 22, 2008·7 cites·1 claims
- 2042US2004244799A1Tube seal adaptor for face masksHANS RUDOLPH INC·Filed 2003·Application pending·0 cites
- 2139USD761416SRespiratory maskHANS RUDOLPH INC·Filed 2015·Granted Jul 12, 2016·2 cites·1 claims
- 2227US6415642B1DLco calibration syringe apparatusHANS RUDOLPH INC·Filed 1999·Granted Jul 9, 2002·13 cites·15 claims
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