Inventor · Durham, GB

Andrew Walker

39Patents
15h-index
39Co-inventors
81Inventor score

Filing activity: Nov 25, 1994 → Jul 25, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US7370387B2 Hand-holdable vacuum cleaners Human Necessities 198 Active
US8549704B2 Hand-held cordless vacuum cleaner Human Necessities 57 Active
US7497886B2 Dust extraction for power tools Performing Operations; Transporting 28 Active
US6780094B2 Oscillating hand tool Performing Operations; Transporting 26 Expired
US7736216B2 Sander having removable platen Performing Operations; Transporting 25 Active
US7316404B1 Drill/driver chuck Emerging Cross-Sectional Technologies 25 Expired
US8235137B2 Mode change mechanism for a power tool Performing Operations; Transporting 23 Active
US6382636B1 Drill/driver chuck Emerging Cross-Sectional Technologies 22 Expired
US7018280B2 Sanding apparatus Performing Operations; Transporting 20 Expired
US7395876B1 Drill driver Performing Operations; Transporting 19 Active
US6875095B2 Oscillating hand tool Performing Operations; Transporting 18 Expired
USD595017S1 Hand-held vacuum cleaner General 17 Expired
US8172642B2 Multi-sander Emerging Cross-Sectional Technologies 17 Active
US8820430B2 Mode change mechanism for a power tool Performing Operations; Transporting 16 Active
US7201643B2 Handle assembly for tool Performing Operations; Transporting 15 Expired
US5544274A Electrical arrangement in power tools--power tool with slide switch Emerging Cross-Sectional Technologies 14 Expired
US8398457B2 Multi-sander Emerging Cross-Sectional Technologies 12 Active
US8800682B2 Dust extraction for power tools Performing Operations; Transporting 11 Active
US8821058B2 Paint applicator Performing Operations; Transporting 11 Active
US7363685B2 Handle assembly for tool Emerging Cross-Sectional Technologies 10 Expired
US7631387B2 Motorized broom and collector Human Necessities 9 Active
US7509744B2 Mode selection mechanism for power tool and power tool incorporating such mechanism Performing Operations; Transporting 9 Active
US5816341A Hammer mechanism Performing Operations; Transporting 7 Expired
US9393658B2 Portable power tool Emerging Cross-Sectional Technologies 6 Active
USRE42873E1 Hand-holdable vacuum cleaners General 6 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.