Inventor · disambiguated record
Wilhelmus Johannes Joseph Maas
Also filed as: MAAS WILHELMUS J J · MAAS WILHELMUS J S · MAAS WILHELMUS JOHANNES · MAAS WILHELMUS JOHANNES J
62 granted patents·22 pending applications·1,405 citations·filing 1988–2024
99Inventor score
Files withAFA PRODUCTS INC23DISPENSING TECH BV23MAAS WILHELMUS JOHANNES JOSEPH14AFA POLYTEK BV10DISPENSING TECHNOLOGIES BV9
Top patents by PatentIndex Score
84 records- 0197US8905271B2Sprayer device with aerosol functionality (“Flairosol”)MAAS WILHELMUS JOHANNES JOSEPH·Filed 2011·Granted Dec 9, 2014·27 cites·22 claims
- 0295US11660624B2Sprayer device with aerosol functionality—flairosolDISPENSING TECH BV·Filed 2021·Granted May 30, 2023·2 cites·16 claims
- 0394USD705651STriggerNEUMANN PETER M·Filed 2012·Granted May 27, 2014·20 cites·1 claims
- 0493USD565948SSpray dispenserAFA POLYTEK BV·Filed 2007·Granted Apr 8, 2008·28 cites·1 claims
- 0593USD353321SCombined bottle and trigger sprayerAFA PRODUCTS INC·Filed 1993·Granted Dec 13, 1994·45 cites·1 claims
- 0690USD830194SSprayer deviceDISPENSING TECH BV·Filed 2013·Granted Oct 9, 2018·38 cites·1 claims
- 0790USD551549SSpray dispenserAFA POLYTEK BV·Filed 2005·Granted Sep 25, 2007·20 cites·1 claims
- 0888US8794487B2Composite container and method for manufacturing same (“multi-layer preform”)MAAS WILHELMUS JOHANNES JOSEPH·Filed 2010·Granted Aug 5, 2014·10 cites·27 claims
- 0987US9714133B2Metered and active sprayer devices with aerosol functionality (“Flairosol II”)DISPENSING TECH BV·Filed 2012·Granted Jul 25, 2017·7 cites·13 claims
- 1087USD347788SCombined bottle and trigger sprayerAFA PRODUCTS INC·Filed 1992·Granted Jun 14, 1994·30 cites·1 claims
- 1187US5297701AAll plastic trigger sprayerAFA PRODUCTS INC·Filed 1992·Granted Mar 29, 1994·71 cites·8 claims
- 1286USD565949SSpray dispenserAFA POLYTEK BV·Filed 2007·Granted Apr 8, 2008·14 cites·1 claims
- 1386US5467900APrecompression valve for trigger sprayerAFA PRODUCTS INC·Filed 1994·Granted Nov 21, 1995·57 cites·38 claims
- 1486US5238152AQuick-locking child resistant bottle cap assemblyAFA PRODUCTS INC·Filed 1992·Granted Aug 24, 1993·68 cites·68 claims
- 1586US5228602APlastic spring assembly for trigger sprayerAFA PRODUCTS INC·Filed 1992·Granted Jul 20, 1993·58 cites·21 claims
- 1686US4989790ANozzle cap, spring valve and body assemblyAFA PRODUCTS INC·Filed 1989·Granted Feb 5, 1991·62 cites·11 claims
- 1786US2024382987A1Metered and active sprayer devices with aerosol functionality - flairosol iiDISPENSING TECH BV·Filed 2024·Application pending·0 cites
- 1885US10456798B2Sprayer device with aerosol functionality (“Flairosol”)DISPENSING TECH BV·Filed 2017·Granted Oct 29, 2019·2 cites·18 claims
- 1984US12377425B2Sprayer device with aerosol functionality—FlairosolDISPENSING TECH BV·Filed 2023·Granted Aug 5, 2025·0 cites·16 claims
- 2084USD698660SSprayer deviceMAAS WILHELMUS JOHANNES JOSEPH·Filed 2011·Granted Feb 4, 2014·29 cites·1 claims
- 2184US2025205929A1Preforms for flair applicationsDISPENSING TECH BV·Filed 2024·Application pending·0 cites
- 2283US11154886B2Metered and active sprayer devices with aerosol functionality (“Flairosol II”)DISPENSING TECH BV·Filed 2020·Granted Oct 26, 2021·1 cites·20 claims
- 2383US6364172B1Liquid dispenser and assembly methods thereforAFA POLYTEK BV·Filed 1999·Granted Apr 2, 2002·50 cites·85 claims
- 2482US5626259ATwo liquid sprayer assemblyAFA PRODUCTS INC·Filed 1995·Granted May 6, 1997·65 cites·13 claims
- 2581US10562053B2Liquid dispensing device having a pre-compression outlet valveDISPENSING TECH BV·Filed 2015·Granted Feb 18, 2020·3 cites·20 claims
- 2681US6789303B2Liquid dispenser and assembly methods thereforAFA POLYTEK BV·Filed 2001·Granted Sep 14, 2004·29 cites·8 claims
- 2781US5730335APrecompression valve for trigger sprayerAFA PRODUCTS INC·Filed 1995·Granted Mar 24, 1998·53 cites·44 claims
- 2880US6378739B1Precompression system for a liquid dispenserAFA POLYTEK BV·Filed 1999·Granted Apr 30, 2002·52 cites·46 claims
- 2980US5397060AFoam-spray-off trigger sprayerAFA PRODUCTS INC·Filed 1994·Granted Mar 14, 1995·52 cites·15 claims
- 3080US5341965APlastic spring assembly for trigger sprayerAFA PRODUCTS·Filed 1993·Granted Aug 30, 1994·51 cites·5 claims
- 3179US5318206ATrigger-piston connectionAFA PRODUCTS INC·Filed 1992·Granted Jun 7, 1994·51 cites·8 claims
- 3279US4925106AFoam-off nozzle assembly with barrel screen insert for use in a trigger sprayerAFA PRODUCTS INC·Filed 1988·Granted May 15, 1990·46 cites·29 claims
- 3379US2024382990A1Systems and Methods to Precisely Control Output Pressure in Buffered Sprayers (DuO1)DISPENSING TECH BV·Filed 2024·Application pending·0 cites
- 3478US12036571B2Metered and active sprayer devices with aerosol functionality—Flairosol IIDISPENSING TECH BV·Filed 2021·Granted Jul 16, 2024·0 cites·14 claims
- 3578USD553497SSpray dispenserAFA POLYTEK BV·Filed 2005·Granted Oct 23, 2007·8 cites·1 claims
- 3677US12138826B2Preforms for flair applicationsDISPENSING TECH BV·Filed 2021·Granted Nov 12, 2024·0 cites·19 claims
- 3776US10537906B2Metered and active sprayer devices with aerosol functionality (“Flairosol II”)DISPENSING TECH BV·Filed 2017·Granted Jan 21, 2020·1 cites·19 claims
- 3875US8857661B2Container with deformable inner container and method of manufacture thereofMAAS WILHELMUS JOHANNES JOSEPH·Filed 2008·Granted Oct 14, 2014·4 cites·42 claims
- 3975US2021129384A1Preforms for flair applicationsDISPENSING TECH BV·Filed 2021·Application pending·0 cites
- 4074US9205952B2Composite container and method for manufacturing same (“multi-layer preform”)DISPENSING TECHNOLOGIES BV·Filed 2014·Granted Dec 8, 2015·3 cites·20 claims
- 4174US8256648B2Precompression system for a liquid dispensing device and method of assembling such precompressed systemMAAS WILHELMUS JOHANNES JOSEPH·Filed 2007·Granted Sep 4, 2012·6 cites·31 claims
- 4274US5169032ATamper evident sprayer/nozzle assemblyAFA PRODUCTS INC·Filed 1992·Granted Dec 8, 1992·43 cites·19 claims
- 4371US9399541B2Container with deformable inner container and method for manufacture thereofDISPENSING TECH BV·Filed 2014·Granted Jul 26, 2016·2 cites·19 claims
- 4471USD355361SSprayerAFA PRODUCTS INC·Filed 1993·Granted Feb 14, 1995·14 cites·1 claims
- 4570US12023695B2Systems and methods to precisely control output pressure in buffered sprayers (DuO1)DISPENSING TECH BV·Filed 2021·Granted Jul 2, 2024·0 cites·20 claims
- 4670USD698661SSprayer deviceMAAS WILHELMUS JOHANNES JOSEPH·Filed 2011·Granted Feb 4, 2014·17 cites·1 claims
- 4770US4991778AAdjustable nozzle assemblyAFA PRODUCTS INC·Filed 1989·Granted Feb 12, 1991·36 cites·14 claims
- 4869US11833534B2System for dosed dispensing of a fluid and method of manufacturing such fluid dispensing systemDISPENSING TECH BV·Filed 2021·Granted Dec 5, 2023·0 cites·14 claims
- 4969US11027296B2Sprayer device with aerosol functionality—FlairosolDISPENSING TECH BV·Filed 2019·Granted Jun 8, 2021·0 cites·20 claims
- 5069USD346547SSprayerAFA PRODUCTS INC·Filed 1992·Granted May 3, 1994·13 cites·1 claims
Showing the top 50 of 84 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →