Inventor · disambiguated record
Warren A. Brackmann
Also filed as: BRACKMANN WARREN A
53 granted patents·3 pending applications·929 citations·filing 1974–2005
99Inventor score
Files withROTHMANS OF PALL MALL29ROTHMANS BENSON & HEDGES23CARLING O KEEFE LTD1ROTHS BENSON & HEDGES INC1SK HAND TOOL CORP1
Top patents by PatentIndex Score
56 records- 0196US7624739B2Tubular cigarette device comprising cerium oxideROTHMANS BENSON & HEDGES·Filed 2005·Granted Dec 1, 2009·59 cites·4 claims
- 0291US3960645AMethod and apparatus for the opening of towROTHMANS OF PALL MALL·Filed 1975·Granted Jun 1, 1976·40 cites·11 claims
- 0390US6371127B1Cigarette sidestream smoke and free-burn rate control deviceROTHMANS BENSON & HEDGES·Filed 1997·Granted Apr 16, 2002·121 cites·44 claims
- 0488US6748955B2Cigarette sidestream smoke and free-burn rate control deviceROTHMANS BENSON & HEDGES·Filed 2002·Granted Jun 15, 2004·47 cites·9 claims
- 0587US6286516B1Cigarette sidestream smoke treatment materialROTHMANS BENSON & HEDGES·Filed 1999·Granted Sep 11, 2001·89 cites·43 claims
- 0683US4073850AMethod of producing polymeric materialROTHMANS OF PALL MALL·Filed 1974·Granted Feb 14, 1978·37 cites·4 claims
- 0781US4972853ACigarette filter rod elements and cigarettes incorporating such filter rod elementsSK HAND TOOL CORP·Filed 1989·Granted Nov 27, 1990·28 cites·17 claims
- 0877US6722373B2Cigarette sidestream smoke treatment materialROTHMANS BENSON & HEDGES·Filed 2002·Granted Apr 20, 2004·16 cites·47 claims
- 0969US5190061ACigarette smoke filterROTHMANS BENSON & HEDGES·Filed 1991·Granted Mar 2, 1993·49 cites·9 claims
- 1067US4566470ATobacco leaf processingROTHMANS OF PALL MALL·Filed 1983·Granted Jan 28, 1986·25 cites·7 claims
- 1166US5524647AControl of cigarette smoke chemistryROTHMANS BENSON & HEDGES·Filed 1995·Granted Jun 11, 1996·33 cites·9 claims
- 1263US4135615ATobacco feeding systemROTHMANS OF PALL MALL·Filed 1976·Granted Jan 23, 1979·21 cites·7 claims
- 1363US3985481AExtrusion head for producing polymeric material fibresROTHMANS OF PALL MALL·Filed 1975·Granted Oct 12, 1976·20 cites·8 claims
- 1463US3951049AMethod and apparatus for forming packaging structuresCARLING O KEEFE LTD·Filed 1975·Granted Apr 20, 1976·21 cites·21 claims
- 1562US4059121AFilter for tobacco smokeROTHMANS OF PALL MALL·Filed 1975·Granted Nov 22, 1977·22 cites·16 claims
- 1661US6443161B1Make-your-own cigaretteROTHS BENSON & HEDGES INC·Filed 2000·Granted Sep 3, 2002·10 cites·10 claims
- 1758US4233996ACutting leaf tobaccoROTHMANS OF PALL MALL·Filed 1979·Granted Nov 18, 1980·16 cites·8 claims
- 1857US4459999ACigarette maker feederROTHMANS OF PALL MALL·Filed 1981·Granted Jul 17, 1984·19 cites·9 claims
- 1956US4627447ATobacco winnowing method and apparatusROTHMANS OF PALL MALL·Filed 1983·Granted Dec 9, 1986·17 cites·29 claims
- 2055US4386617ATobacco stem shreddingROTHMANS OF PALL MALL·Filed 1981·Granted Jun 7, 1983·13 cites·25 claims
- 2154US5105830ADevice and method for assembly of cigarettesROTHMANS BENSON & HEDGES·Filed 1990·Granted Apr 21, 1992·26 cites·25 claims
- 2254US2004173230A1Cigarette sidestream smoke and free-burn rate control deviceROTHMANS BENSON & HEDGES·Filed 2004·Application pending·0 cites
- 2353US2004173231A1Cigarette sidestream smoke treatment materialROTHMANS BENSON & HEDGES·Filed 2004·Application pending·0 cites
- 2451US4793367ALinear layered cigaretteROTHMANS OF PALL MALL·Filed 1986·Granted Dec 27, 1988·12 cites·6 claims
- 2550US4557278ATobacco lamina and stem processingROTHMANS OF PALL MALL·Filed 1983·Granted Dec 10, 1985·12 cites·10 claims
- 2648US4716913AComposite cigarettesROTHMANS OF PALL MALL·Filed 1986·Granted Jan 5, 1988·13 cites·11 claims
- 2748US2002002979A1Cigarette sidestream smoke treatment materialFiled 2001·Application pending·0 cites
- 2847US5377826ACigarette extinguishing storage deviceROTHMANS BENSON & HEDGES·Filed 1993·Granted Jan 3, 1995·13 cites·5 claims
- 2947US4512353ATobacco drying procedureROTHMANS OF PALL MALL·Filed 1983·Granted Apr 23, 1985·10 cites·7 claims
- 3046US4456018AFeeding tobacco cutting machinesROTHMANS OF PALL MALL·Filed 1982·Granted Jun 26, 1984·10 cites·12 claims
- 3145US4867180ACigarette making machine hopperROTHMANS BENSON & HEDGES·Filed 1988·Granted Sep 19, 1989·12 cites·11 claims
- 3245US4458698ATobacco metering and feeding systemROTHMANS OF PALL MALL·Filed 1980·Granted Jul 10, 1984·8 cites·3 claims
- 3343US5509429AUniform tar delivery profile filterROTHMANS BENSON & HEDGES·Filed 1995·Granted Apr 23, 1996·11 cites·6 claims
- 3443US4567903AFormation of tobacco material blendROTHMANS OF PALL MALL·Filed 1982·Granted Feb 4, 1986·7 cites·6 claims
- 3541US4754765AHopperless cigarette making machinesROTHMANS OF PALL MALL·Filed 1986·Granted Jul 5, 1988·9 cites·20 claims
- 3640US4222397AOpening and moistening tobacco from balesROTHMANS OF PALL MALL·Filed 1978·Granted Sep 16, 1980·7 cites·13 claims
- 3739US5826592AControl of cigarette smoke chemistryROTHMANS BENSON & HEDGES·Filed 1995·Granted Oct 27, 1998·6 cites·9 claims
- 3839US4787401ASculptured cigaretteROTHMANS OF PALL MALL·Filed 1986·Granted Nov 29, 1988·5 cites·7 claims
- 3939US4369797AFeed mechanism for tobacco cutting machinesROTHMANS OF PALL MALL·Filed 1980·Granted Jan 25, 1983·6 cites·11 claims
- 4037US5080112AControlled opening of fibrous materialsROTHMANS BENSON & HEDGES·Filed 1990·Granted Jan 14, 1992·7 cites·25 claims
- 4137US3980088ACigarette making machineROTHMANS OF PALL MALL·Filed 1975·Granted Sep 14, 1976·7 cites·37 claims
- 4236US5752528ACigarette extinguishing storage deviceROTHMANS BENSON & HEDGES·Filed 1994·Granted May 19, 1998·5 cites·15 claims
- 4336US4031903AWinnowing of tobaccoROTHMANS OF PALL MALL·Filed 1975·Granted Jun 28, 1977·4 cites·26 claims
- 4435US5267578AControlled opening of fibrous materialsROTHMANS BENSON & HEDGES·Filed 1991·Granted Dec 7, 1993·5 cites·8 claims
- 4535US4349037ATobacco moistening and opening apparatusROTHMANS OF PALL MALL·Filed 1981·Granted Sep 14, 1982·3 cites·1 claims
- 4635US4005717ATobacco stream manufactureROTHMANS OF PALL MALL·Filed 1975·Granted Feb 1, 1977·4 cites·2 claims
- 4733US5501332ACigarette extinguishing storage deviceROTHMANS BENSON & HEDGES·Filed 1994·Granted Mar 26, 1996·3 cites·14 claims
- 4833US4953570ACigarette making machine hopperROTHMANS BENSON & HEDGES·Filed 1989·Granted Sep 4, 1990·3 cites·7 claims
- 4933US4307736ATobacco moistening and opening apparatusROTHMANS OF PALL MALL·Filed 1980·Granted Dec 29, 1981·2 cites·13 claims
- 5033US3989052ATobacco filler rod productionROTHMANS OF PALL MALL·Filed 1975·Granted Nov 2, 1976·2 cites·11 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
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