DR

David Rowntree

BD Black & Decker: 3 patents #26 of 268Top 10%
📍 Durham, GB: #1 of 5 inventorsTop 20%
Overall (2011): #50,812 of 364,097Top 15%
3
Patents 2011

Issued Patents 2011

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
RE42873 Hand-holdable vacuum cleaners Andrew Walker, Eric Coburn 2011-11-01
8032984 Vacuum cleaner filter cleaning mechanisms Barry Pears 2011-10-11
8028373 Vacuum cleaners 2011-10-04