Inventor · disambiguated record
John W. Pfeiffer
Also filed as: PFEIFFER JOHN W
22 granted patents·2 pending applications·300 citations·filing 1983–2008
96Inventor score
Top patents by PatentIndex Score
24 records- 0194US6764253B1System and method for assuring fluidization of a material transported in a pneumatic conveying systemYOUNG IND INC·Filed 2003·Granted Jul 20, 2004·54 cites·19 claims
- 0291US6719500B2System for pneumatically conveying bulk particulate materialsYOUNG IND INC·Filed 2002·Granted Apr 13, 2004·41 cites·47 claims
- 0391US6609871B2System for handling bulk particulate materialsYOUNG IND INC·Filed 2001·Granted Aug 26, 2003·39 cites·41 claims
- 0484US6722822B2System for pneumatically conveying bulk particulate materialsYOUNG IND INC·Filed 2002·Granted Apr 20, 2004·21 cites·19 claims
- 0576US7384230B2System and method for handling containers of bulk particulate materialsYOUNG IND INC·Filed 2006·Granted Jun 10, 2008·6 cites·36 claims
- 0671US7063493B2System and method for handling containers of bulk particulate materialsYOUNG IND INC·Filed 2002·Granted Jun 20, 2006·9 cites·37 claims
- 0763US7073985B2System for pneumatically conveying bulk particulate materialsYOUNG IND INC·Filed 2005·Granted Jul 11, 2006·3 cites·1 claims
- 0860US6682290B2System for handling bulk particulate materialsYOUNG IND INC·Filed 2003·Granted Jan 27, 2004·8 cites·18 claims
- 0960US5899641ABulk material conveying system and ejector thereforYOUNG IND·Filed 1997·Granted May 4, 1999·17 cites·9 claims
- 1059US7967546B2System and method for handling containers of bulk particulate materialsYOUNG IND INC·Filed 2007·Granted Jun 28, 2011·1 cites·9 claims
- 1157US6964544B2System for pneumatically conveying bulk particulate materialsYOUNG IND INC·Filed 2004·Granted Nov 15, 2005·5 cites·14 claims
- 1256US6254315B1Eductor wand for bulk particulate materialsYOUNG IND INC·Filed 1999·Granted Jul 3, 2001·16 cites·10 claims
- 1356US5746796AAir filtration apparatus and filter cartridge retaining means thereforYOUNG IND INC·Filed 1997·Granted May 5, 1998·27 cites·30 claims
- 1454US6345935B2Vacuum system for particulate materials and an improved ejector device thereforYOUNG IND INC·Filed 2001·Granted Feb 12, 2002·5 cites·10 claims
- 1553US6796749B2System for pneumatically conveying bulk particulate materialsYOUNG IND INC·Filed 2003·Granted Sep 28, 2004·4 cites·12 claims
- 1652US5769572ABag dumping station vacuumYOUNG IND INC·Filed 1996·Granted Jun 23, 1998·14 cites·12 claims
- 1751US6345936B2Bulk material conveying system and ejector thereforYOUNG IND INC·Filed 1999·Granted Feb 12, 2002·11 cites·5 claims
- 1848US6843633B2System and apparatus for filling containers with bulk particulate materialsYOUNG IND INC·Filed 2004·Granted Jan 18, 2005·3 cites·24 claims
- 1944US6739358B2System and apparatus for filling containers with bulk particulate materialsYOUNG IND INC·Filed 2002·Granted May 25, 2004·1 cites·29 claims
- 2043US2010014926A1System and Method for Pneumatically conveying Metered Amounts of Bulk Particulate MaterialBOROCH ANTHONY E·Filed 2008·Application pending·0 cites
- 2138US4565305ARotary vane valveKOPPERS CO INC·Filed 1983·Granted Jan 21, 1986·8 cites·4 claims
- 2238US2005269369A1Rotary feeder valve for pneumatic conveying systemPFEIFFER JOHN W·Filed 2004·Application pending·0 cites
- 2337US4556079ARotary vane valve including means for ensuring uniform distribution of purge gasKOPPERS CO INC·Filed 1983·Granted Dec 3, 1985·5 cites·12 claims
- 2431US6234722B1Vacuum system for particulate materials and an ejector device thereforFiled 1999·Granted May 22, 2001·2 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →