Inventor · disambiguated record
Norwin C. Derby
Also filed as: DERBY NORWIN C · DERBY NORWIN CED · WILLIAMSON ROBERT R
51 granted patents·2 pending applications·1,845 citations·filing 1977–2005
99Inventor score
Files withSUPER SACK MFG CORP29BAG CORP12BETTER AGRICULTURAL GOALS CORP4BETTER AGRICULTURAL GOALS INC4SUPER SACK MANUFACTURING COMPA2
Top patents by PatentIndex Score
53 records- 0197US4194652ACollapsible receptacle for flowable materialsSUPER SACK MFG CORP·Filed 1978·Granted Mar 25, 1980·137 cites·31 claims
- 0296US5244019AVacuum fill systemBETTER AGRICULTURAL GOALS CORP·Filed 1992·Granted Sep 14, 1993·87 cites·20 claims
- 0396US5109893AVacuum fill systemBAG CORP·Filed 1990·Granted May 5, 1992·99 cites·12 claims
- 0495US4143796ACollapsible receptacle for flowable materialsSUPER SACK MFG CORP·Filed 1977·Granted Mar 13, 1979·109 cites·19 claims
- 0593US4903859AContainer for flowable materialsBETTER AGRICULTURAL GOALS INC·Filed 1988·Granted Feb 27, 1990·123 cites·18 claims
- 0693US4479243ACollapsible receptacle with prefabricated lift loops and method of makingSUPER SACK MFG CORP·Filed 1983·Granted Oct 23, 1984·85 cites·63 claims
- 0789US4457456ACollapsible receptacle with static electric charge eliminationSUPER SACK MANUFACTURING COMPA·Filed 1982·Granted Jul 3, 1984·78 cites·6 claims
- 0888US4759473ACollapsible receptacle with integral slingSUPER SACK MFG CORP·Filed 1984·Granted Jul 26, 1988·65 cites·6 claims
- 0987US5275215AVacuum fill systemBETTER AGRICULTURAL GOALS CORP·Filed 1993·Granted Jan 4, 1994·45 cites·5 claims
- 1087US4224970ACollapsible receptacle for flowable materialsSUPER SACK MFG CORP·Filed 1978·Granted Sep 30, 1980·58 cites·11 claims
- 1185US5234037AVacuum fill systemBAG CORP·Filed 1992·Granted Aug 10, 1993·39 cites·15 claims
- 1283US4833008AMetalized fabricBAG CORP·Filed 1987·Granted May 23, 1989·38 cites·5 claims
- 1382US5649767ABaffle linerSUPER SACK MFG CORP·Filed 1996·Granted Jul 22, 1997·40 cites·7 claims
- 1480US5158369AStabilized flexible container for flowable materialsBAG CORP·Filed 1991·Granted Oct 27, 1992·57 cites·14 claims
- 1579US6302584B1Woven polypropylene bulk bag with polypropylene lining or liner and process for manufacturing sameSUPER SACK MFG CORP·Filed 2000·Granted Oct 16, 2001·13 cites·1 claims
- 1679US5531252AVacuum fill systemBAG CORP·Filed 1995·Granted Jul 2, 1996·39 cites·15 claims
- 1777US5695286ABottom lift bulk bagSUPER SACK MFG CORP·Filed 1996·Granted Dec 9, 1997·51 cites·7 claims
- 1876US6565256B2Bulk bag for dense materialsSUPER SACK MFG CORP·Filed 2001·Granted May 20, 2003·18 cites·7 claims
- 1976US5518048AFull sack compressorBAG CORP·Filed 1995·Granted May 21, 1996·28 cites·12 claims
- 2076US5230689AMethod of making stabilized flexible container for flowable materialsBAG CORP·Filed 1992·Granted Jul 27, 1993·42 cites·9 claims
- 2175US5056571AContainer fill systemSUPER SACK MANUFACTURING COMPA·Filed 1991·Granted Oct 15, 1991·32 cites·18 claims
- 2274US5076710ASpread strap flexible bulk containerSUPER SACK MFG CORP·Filed 1990·Granted Dec 31, 1991·47 cites·16 claims
- 2373US4691371AReceptacle having improved discharge spoutSUPER SACK MFG CORP·Filed 1985·Granted Sep 1, 1987·42 cites·10 claims
- 2472US6179467B1Woven polypropylene bulk bag with polypropylene lining or liner and process for manufacturing sameSUPER SACK MFG CORP·Filed 1999·Granted Jan 30, 2001·26 cites·1 claims
- 2569US5503517ASlip sheet and method of use of sameBAG CORP·Filed 1994·Granted Apr 2, 1996·40 cites·8 claims
- 2664US5538053AVacuum densifier with augerBETTER AGRICULTURAL GOALS CORP·Filed 1995·Granted Jul 23, 1996·21 cites·14 claims
- 2763US7794148B2Bulk bag for dense materialsSUPER SACK MFG CORP·Filed 2005·Granted Sep 14, 2010·7 cites·5 claims
- 2863US5244281AStatic controlled collapsible receptacleSUPER SACK MANUFACTURING CO·Filed 1992·Granted Sep 14, 1993·43 cites·6 claims
- 2963US4865218AProtective cover for bulk containerBETTER AGRICULTURAL GOALS INC·Filed 1988·Granted Sep 12, 1989·31 cites·6 claims
- 3063US4811419AReceptacle having improved hopperBETTER AGRICULTURAL GOALS INC·Filed 1988·Granted Mar 7, 1989·29 cites·11 claims
- 3161US5513682AVacuum fill systemBAG CORP·Filed 1994·Granted May 7, 1996·16 cites·15 claims
- 3259US5279339AFull sack compressorBAG CORP·Filed 1992·Granted Jan 18, 1994·15 cites·11 claims
- 3356US5158367ASpread strap flexible bulk containerSUPER SACK MFG CORP·Filed 1991·Granted Oct 27, 1992·17 cites·8 claims
- 3456US4909410AProtective cover for bulk containerBETTER AGRICULTURAL GOALS INC·Filed 1989·Granted Mar 20, 1990·26 cites·26 claims
- 3555US5865540AOne piece flexible intermediate bulk container and process for manufacturing sameSUPER SACK MFG CORP·Filed 1997·Granted Feb 2, 1999·24 cites·9 claims
- 3655US5447183AVacuum fill systemBAG CORP·Filed 1993·Granted Sep 5, 1995·15 cites·4 claims
- 3751US5490828ABulk container and process for manufacture of sameSUPER SACK MFG CORP·Filed 1993·Granted Feb 13, 1996·9 cites·6 claims
- 3850US5746862AMethod of making a liner for roll-off waste containersSUPER SACK MFG CORP·Filed 1995·Granted May 5, 1998·13 cites·6 claims
- 3950US5478406AMethod and apparatus for cleaning flexible containersBETTER AGRICULTURAL GOALS CORP·Filed 1993·Granted Dec 26, 1995·19 cites·2 claims
- 4050US5203633ASpread strap flexible bulk containerSUPER SACK MFG CORP·Filed 1991·Granted Apr 20, 1993·20 cites·18 claims
- 4149US5842789AOne piece flexible intermediate bulk container and process for manufacturing sameSUPER SACK MFG CORP·Filed 1997·Granted Dec 1, 1998·16 cites·9 claims
- 4249US5165802ASpread strap flexible bulk containerSUPER SACK MFG CORP·Filed 1991·Granted Nov 24, 1992·19 cites·6 claims
- 4349US4878600AStatic controlled discharge spoutSUPER SACK MFG CORP·Filed 1988·Granted Nov 7, 1989·18 cites·2 claims
- 4446US2002008517A1Octagon shaped flexible intermediate bulk container and method of manufactureFiled 2001·Application pending·0 cites
- 4542US5509451AVacuum fill systemBAG CORP·Filed 1995·Granted Apr 23, 1996·8 cites·31 claims
- 4641US5893644AGlue bottom bulk containerSUPER SACK MFG CORP·Filed 1997·Granted Apr 13, 1999·9 cites·1 claims
- 4740US5951799AAnti-microbial shoe lining and sock liner and process for manufacture of sameSUPER SACK MFG CORP·Filed 1997·Granted Sep 14, 1999·13 cites·12 claims
- 4840US5618113ABulk container with glued bottomSUPER SACK MFG CORP·Filed 1995·Granted Apr 8, 1997·6 cites·3 claims
- 4937US5924796AOne piece flexible intermediate bulk container and process for manufacturing sameSUPER SACK MFG CORP·Filed 1997·Granted Jul 20, 1999·8 cites·10 claims
- 5033US5752908AMethod of manufacture of a glued top and bottom bulk containerSUPER SACK MFG CORP·Filed 1996·Granted May 19, 1998·4 cites·4 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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