Inventor · disambiguated record
Stephen J. Howgill
Also filed as: HOWGILL STEPHEN · HOWGILL STEPHEN J
17 granted patents·11 pending applications·235 citations·filing 1997–2025
94Inventor score
Files with3M INNOVATIVE PROPERTIES CO8KINDEVA DRUG DELIVERY LP7BREWER RICHARD D3MERXIN LTD3HODSON PETER D2
Top patents by PatentIndex Score
28 records- 0192US10596333B2Dose indicator for a metered dose inhaler3M INNOVATIVE PROPERTIES CO·Filed 2015·Granted Mar 24, 2020·10 cites·35 claims
- 0290US11497866B2Trigger mechanism for an inhalerKINDEVA DRUG DELIVERY LP·Filed 2017·Granted Nov 15, 2022·10 cites·13 claims
- 0387USD840020SInhaler3M INNOVATIVE PROPERTIES CO·Filed 2017·Granted Feb 5, 2019·28 cites·1 claims
- 0483US9089661B2Dose counter3M INNOVATIVE PROPERTIES CO·Filed 2013·Granted Jul 28, 2015·15 cites·17 claims
- 0583US8459253B2Dose counterHOWGILL STEPHEN J·Filed 2008·Granted Jun 11, 2013·16 cites·15 claims
- 0682USD872853SInhaler3M INNOVATIVE PROPERTIES CO·Filed 2017·Granted Jan 14, 2020·21 cites·1 claims
- 0782US8479732B2Dose counterSTUART ADAM J·Filed 2007·Granted Jul 9, 2013·30 cites·21 claims
- 0878US6102179ADevice for transmission of one-way torqueASTRA AB·Filed 1997·Granted Aug 15, 2000·29 cites·6 claims
- 0977US8814009B2Metered dose valveHODSON PETER D·Filed 2008·Granted Aug 26, 2014·14 cites·2 claims
- 1070USD878544SInhaler3M INNOVATIVE PROPERTIES CO·Filed 2017·Granted Mar 17, 2020·12 cites·1 claims
- 1170USD687947SInhalerBREWER RICHARD D·Filed 2011·Granted Aug 13, 2013·18 cites·1 claims
- 1268USD687946SInhalerBREWER RICHARD D·Filed 2011·Granted Aug 13, 2013·16 cites·1 claims
- 1366USD687945SInhalerBREWER RICHARD D·Filed 2011·Granted Aug 13, 2013·15 cites·1 claims
- 1465US10806872B2Dose counter for metered dose inhalerKINDEVA DRUG DELIVERY LP·Filed 2015·Granted Oct 20, 2020·1 cites·30 claims
- 1562US2021016025A1Dose indicator or dose counterKINDEVA DRUG DELIVERY LP·Filed 2020·Application pending·0 cites
- 1659US10792444B2Dose indicator or dose counterKINDEVA DRUG DELIVERY LP·Filed 2014·Granted Oct 6, 2020·0 cites·29 claims
- 1756US2024189525A1Drive MechanismMERXIN LTD·Filed 2022·Application pending·0 cites
- 1854US2025114541A1Dry powder inhalation deviceMERXIN LTD·Filed 2023·Application pending·0 cites
- 1953US2025325796A1Liquid delivery device with a one-way valveMERXIN LTD·Filed 2025·Application pending·0 cites
- 2052US2025352742A1Metered dose inhaler canister with improved sealing arrangementBUNTING JOHN P·Filed 2023·Application pending·0 cites
- 2151US11707584B2Inhaler flow control mechanismKINDEVA DRUG DELIVERY LP·Filed 2018·Granted Jul 25, 2023·0 cites·15 claims
- 2250US12036356B2Energy storage mechanism for an inhalerKINDEVA DRUG DELIVERY LP·Filed 2017·Granted Jul 16, 2024·0 cites·20 claims
- 2347US2023233777A1Carbon dioxide based metered dose inhalerKINDEVA DRUG DELIVERY LP·Filed 2020·Application pending·0 cites
- 2444US2008202515A1Inhalation Device3M INNOVATIVE PROPERTIES CO·Filed 2005·Application pending·0 cites
- 2544US2023285697A1Device for delivery of a compound to specific regions of the nasal cavityCOOPER ANDREW ROBERT·Filed 2021·Application pending·0 cites
- 2644US2015136122A1Metered Dose Dispensing Valve3M INNOVATIVE PROPERTIES CO·Filed 2013·Application pending·0 cites
- 2743US2008092887A1Single-Dose Inhalation DevicesHODSON PETER D·Filed 2005·Application pending·0 cites
- 2839US2013037021A1Inhaler3M INNOVATIVE PROPERTIES CO·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →