Inventor · disambiguated record
Leif B. Sorensen
Also filed as: OSTMANN WALTER · SOERENSEN LEIF · SORENSEN LEIF · SORENSEN LEIF B
16 granted patents·7 pending applications·451 citations·filing 1974–2019
94Inventor score
Top patents by PatentIndex Score
23 records- 0195US4925318APacking, method of manufacturing same, and strip material thereforSCHURPACK INC·Filed 1988·Granted May 15, 1990·139 cites·31 claims
- 0293US8590282B2Package with unique opening device and method for opening packagePERELL WILLIAM S·Filed 2010·Granted Nov 26, 2013·12 cites·17 claims
- 0393US5188461APacking, method of manufacturing same, and strip material thereforSCHURPACK INC·Filed 1992·Granted Feb 23, 1993·122 cites·20 claims
- 0489US11066221B2Package with unique opening device and method for opening packagePOPPACK LLC·Filed 2019·Granted Jul 20, 2021·3 cites·6 claims
- 0589USD654790SHolding container with breachable perimeter bubblePERELL WILLIAM S·Filed 2011·Granted Feb 28, 2012·5 cites·1 claims
- 0685US4969967AMethod of manufacturing packing and strip material thereforSCHURPACK INC·Filed 1989·Granted Nov 13, 1990·52 cites·19 claims
- 0779US9802745B2Pour channel with cohesive closure valve and locking bubblePERELL WILLIAM S·Filed 2008·Granted Oct 31, 2017·8 cites·18 claims
- 0878US9365339B2Package with unique opening device and process for forming packagePERELL WILLIAM·Filed 2010·Granted Jun 14, 2016·5 cites·19 claims
- 0968US10239643B2Rigid holding container with breachable perimeter bubblePOPPACK LLC·Filed 2013·Granted Mar 26, 2019·1 cites·20 claims
- 1067US5895587ACook-in package and method of making sameCRYOVAC INC·Filed 1997·Granted Apr 20, 1999·25 cites·28 claims
- 1166US10836518B2Rigid holding container with breachable perimeter bubblePOPPACK LLC·Filed 2019·Granted Nov 17, 2020·0 cites·20 claims
- 1261US5046916AHandling apparatusVOLVO AB·Filed 1988·Granted Sep 10, 1991·14 cites·4 claims
- 1361US2010278462A1Package With One or More Access Points For Breaking One or More Seals and Accessing the Contents of the PackagePOPPACK LLC·Filed 2009·Application pending·0 cites
- 1460US4189050APacking of the folding bag typeSCHUR INT AS BRDR·Filed 1976·Granted Feb 19, 1980·24 cites·4 claims
- 1560US3960997AMethod of manufacturing biaxially stretched shrink foils and an apparatus for carrying the method into effectHORSENS PLASTIC A S·Filed 1974·Granted Jun 1, 1976·21 cites·10 claims
- 1660US2016311596A1Package With Unique Opening Device and Method For Opening PackagePOPPACK LLC·Filed 2016·Application pending·0 cites
- 1756US2014157727A1Package Containing a Breachable Bubble in Combination with a Closure DevicePOPPACK LLC·Filed 2014·Application pending·0 cites
- 1855US2010300901A1Rigid holding container with breachable perimeter bubblePERELL WILLIAM S·Filed 2008·Application pending·0 cites
- 1953US2013118134A1Package with unique opening device and method for opening packagePERELL WILLIAM S·Filed 2011·Application pending·0 cites
- 2051US2011200275A1Package containing a breachable bubble in combination with a closure devicePOPPACK LLC·Filed 2010·Application pending·0 cites
- 2150US4228900APacking of the folding bag type, primarily for pipe tobacco, and a folding bag member for such a packingSCHUR INT AS BRDR·Filed 1978·Granted Oct 21, 1980·15 cites·2 claims
- 2246US2011120899A1Inflatable mailing packageSORENSEN LEIF B·Filed 2010·Application pending·0 cites
- 2334US5392895ATransfer unitVOLVO AB·Filed 1993·Granted Feb 28, 1995·5 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →