Inventor · disambiguated record
John Zowtiak
Also filed as: ZOWTIAK JOHN · ZOWTIAK JOHN M
4 granted patents·161 citations·filing 1988–2000
79Inventor score
Top patents by PatentIndex Score
4 records- 0163US6334441B1Phonation valve for breathing tubeMALLINCKRODT MEDICAL INC·Filed 1998·Granted Jan 1, 2002·113 cites·11 claims
- 0263US4960708APressurized packaged reference liquid for blood gas analysisBAXTER INT·Filed 1988·Granted Oct 2, 1990·29 cites·13 claims
- 0348US6386200B1Bi-functional in-line phonation valveMALLINCKRODT INC·Filed 2000·Granted May 14, 2002·3 cites·2 claims
- 0432US6189534B1Bi-functional in-line phonation valveMALLINCKRODT INC·Filed 1998·Granted Feb 20, 2001·16 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →