SH

Stephen D. Helm

3M: 2 patents #5,326 of 11,543Top 50%
Overall (All Time): #1,935,823 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10272214 Valve for pressurized metered dose dispenser Andrew D. Child 2019-04-30
8814009 Metered dose valve Peter D. Hodson, Matthew A. Goring, Stephen J. Howgill, John Fielding, Richard D. Brewer +6 more 2014-08-26