GP

Graham R. Purkins

3M: 9 patents #1,775 of 11,543Top 20%
Overall (All Time): #436,671 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
D1077207 Cartridge for inhaler 2025-05-27
11730898 Inhaler Carol Suzanne Balfour, Gavin Kovacs, Philippe Rogueda 2023-08-22
9089661 Dose counter Adam J. Stuart, Rachel Striebig, Stephen J. Howgill, Peter D. Hodson, Richard D. Brewer +1 more 2015-07-28
9067031 Metered dose valves and dispensers Philip A. Jinks, Peter D. Hodson, Paul E. Hansen 2015-06-30
8740014 Dose counter for dispensers Lee A. Kristensen, Sarah Jones, David J. Greenleaf 2014-06-03
8517019 Method and apparatus for metered dose dispensing Richard D. Brewer, Peter D. Hodson, David J.C. Steven 2013-08-27
D687945 Inhaler Richard D. Brewer, Craig Davidson, Stephen J. Howgill 2013-08-13
D687946 Inhaler Richard D. Brewer, Craig Davidson, Stephen J. Howgill 2013-08-13
D687947 Inhaler Richard D. Brewer, Craig Davidson, Stephen J. Howgill 2013-08-13
8479732 Dose counter Adam J. Stuart, Rachel Striebig, Stephen J. Howgill, Peter D. Hodson, Richard D. Brewer +1 more 2013-07-09
7234460 Metering valve for a metered dose inhaler providing consistent delivery David J. Greenleaf, Peter D. Hodson, Gary Mahon, Heinz Klein 2007-06-26