Inventor · disambiguated record
Frederick W. Zeyfang
Also filed as: ZEYFANG FREDERICK W · ZEYFANG FREDERICK WILLIAM
28 granted patents·9 pending applications·324 citations·filing 1995–2012
96Inventor score
Top patents by PatentIndex Score
37 records- 0192USD623049SHole plugPROTECTIVE IND INC·Filed 2009·Granted Sep 7, 2010·49 cites·1 claims
- 0290USD617426SOpen ended industrial pipe capPROTECTIVE IND INC·Filed 2009·Granted Jun 8, 2010·37 cites·1 claims
- 0388USD605935SErgonomic end capPROTECTIVE IND INC·Filed 2008·Granted Dec 15, 2009·39 cites·1 claims
- 0486USD651709SVented end cap for medical tubeZEYFANG FREDERICK W·Filed 2010·Granted Jan 3, 2012·36 cites·1 claims
- 0585US8051879B2Open ended industrial pipe capPROTECTIVE IND INC·Filed 2009·Granted Nov 8, 2011·15 cites·20 claims
- 0683US8443844B2Flange protectorZEYFANG FREDERICK W·Filed 2009·Granted May 21, 2013·13 cites·20 claims
- 0783US7487801B2Cap and plug for masking or shippingPROTECTIVE IND INC·Filed 2006·Granted Feb 10, 2009·12 cites·5 claims
- 0879US7727593B2Cap and plug masking or shippingPROTECTIVE IND INC·Filed 2009·Granted Jun 1, 2010·9 cites·5 claims
- 0976US8671991B2Flange protector and lugZEYFANG FREDERICK W·Filed 2012·Granted Mar 18, 2014·4 cites·10 claims
- 1075US7681587B2Gas bottle valve stem protective sleevePROTECTIVE IND INC·Filed 2006·Granted Mar 23, 2010·5 cites·7 claims
- 1171US8800603B2Flange protector and masking deviceZEYFANG FREDERICK W·Filed 2011·Granted Aug 12, 2014·4 cites·64 claims
- 1270USD615164SOpen ended industrial pipe capPROTECTIVE IND INC·Filed 2009·Granted May 4, 2010·14 cites·1 claims
- 1364US2010229436A1Color-coded gas cylinder collarZEYFANG FREDERICK W·Filed 2009·Application pending·0 cites
- 1463US9068682B2Open ended industrial pipe cap for smaller diameter pipesPROTECTIVE IND INC·Filed 2012·Granted Jun 30, 2015·1 cites·12 claims
- 1563US9027603B2Open ended industrial pipe cap with recessed finger gripZEYFANG FREDERICK W·Filed 2012·Granted May 12, 2015·2 cites·20 claims
- 1663US8733404B2Threaded plug for hammer union and assembly thereofZEYFANG FREDERICK W·Filed 2012·Granted May 27, 2014·1 cites·7 claims
- 1763US8141578B2Gas bottle valve stem protective sleeveZEYFANG FREDERICK W·Filed 2007·Granted Mar 27, 2012·1 cites·23 claims
- 1861USD585738STextured pull capPROTECTIVE IND INC·Filed 2008·Granted Feb 3, 2009·8 cites·1 claims
- 1960US5613615AVenting cap for maskingBUNZL PLASTICS INC·Filed 1995·Granted Mar 25, 1997·36 cites·16 claims
- 2059US2009255933A1Information tube and tethered end cap used therewithPROTECTIVE IND INC·Filed 2008·Application pending·0 cites
- 2157USD576851SGas valve wrenchPROTECTIVE IND INC·Filed 2008·Granted Sep 16, 2008·10 cites·1 claims
- 2252USD598748STextured pull capPROTECTIVE IND INC·Filed 2009·Granted Aug 25, 2009·5 cites·1 claims
- 2352US2010200098A1Closed end cap for industrial pipesPROTECTIVE IND INC·Filed 2009·Application pending·0 cites
- 2451USD592951STextured pull capPROTECTIVE IND INC·Filed 2008·Granted May 26, 2009·5 cites·1 claims
- 2550US2012192967A1Gas bottle valve stem protective deviceZEYFANG FREDERICK W·Filed 2012·Application pending·0 cites
- 2649USD726286SPlug for a hammer unionZEYFANG FREDERICK W·Filed 2012·Granted Apr 7, 2015·9 cites·1 claims
- 2748USD587762SInformation tubePROTECTIVE IND INC·Filed 2008·Granted Mar 3, 2009·6 cites·1 claims
- 2847US8464749B2Gas bottle valve body protective deviceZEYFANG FREDERICK W·Filed 2011·Granted Jun 18, 2013·0 cites·52 claims
- 2946US2011008557A1"Compression-molded silicone rubber cap and plug"ZEYFANG FREDERICK W·Filed 2010·Application pending·0 cites
- 3046US2006278653A1Center pull tab plug with sealing flangeZEYFANG FREDERICK W·Filed 2005·Application pending·0 cites
- 3146US2010200102A1Two-piece pipe end capZEYFANG FREDERICK W·Filed 2010·Application pending·0 cites
- 3246US2014124084A1Open ended industrial pipe capPROTECTIVE IND INC·Filed 2012·Application pending·0 cites
- 3345US2014124056A1Wrap-around gas bottle valve body protective deviceZEYFANG FREDERICK W·Filed 2012·Application pending·0 cites
- 3444USD599205STextured pull capPROTECTIVE IND INC·Filed 2009·Granted Sep 1, 2009·3 cites·1 claims
- 3540US7517485B2Liquid vinyl injection molding method and apparatusPROTECTIVE IND INC·Filed 2005·Granted Apr 14, 2009·0 cites·36 claims
- 3631USD665887SFlange protectorZEYFANG FREDERICK W·Filed 2012·Granted Aug 21, 2012·0 cites·1 claims
- 3730USD583871SEnd cap for information tubePROTECTIVE IND INC·Filed 2008·Granted Dec 30, 2008·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →