Inventor · Sheffield, GB

Stephen Rowlay

33Patents
14h-index
20Co-inventors
81Inventor score

Filing activity: Mar 25, 1998 → Feb 6, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
USD408253S Screwdriver handle General 41 Expired
USD418731S Screwdriver for interchangeable bits General 39 Expired
USD429461S Hand tool package General 37 Expired
US6957491B2 Combination utility and sporting knife Performing Operations; Transporting 33 Expired
US7296354B2 Combination utility and sporting knife Performing Operations; Transporting 29 Expired
US7520059B2 Compact utility knife Performing Operations; Transporting 26 Active
US8413339B2 Quick change snap off knife Emerging Cross-Sectional Technologies 25 Active
US7797836B2 Compact utility knife Performing Operations; Transporting 24 Active
US6971178B2 Replaceable blade knife Performing Operations; Transporting 23 Expired
US7090209B1 Adjustable clamp and method of using an adjustable clamp Performing Operations; Transporting 23 Expired
US6305248A Ratcheting driver Performing Operations; Transporting 22 Expired
US8549755B2 Compact utility knife Performing Operations; Transporting 19 Active
US7131642B1 Adjustable clamp Performing Operations; Transporting 16 Expired
US8793881B2 Utility knife with blade lock Performing Operations; Transporting 14 Active
USD427877S Hand tool handle General 14 Expired
US6293173A Tool-bit magazine for hand tool Performing Operations; Transporting 14 Expired
US8683703B2 Utility knife with blade wiper Performing Operations; Transporting 13 Active
US8567070B2 Utility knife with blade snapper Performing Operations; Transporting 12 Active
US7389978B2 Adjustable clamp Performing Operations; Transporting 12 Expired
US8783671B2 Clamp Emerging Cross-Sectional Technologies 12 Active
US7603779B2 Double ended knife Performing Operations; Transporting 11 Active
US7604224B2 Motorized clamp Performing Operations; Transporting 10 Active
US8763260B2 Modular saw Performing Operations; Transporting 9 Active
USD427876S Handle for six-way hand tool General 6 Expired
US9421672B2 Clamp assembly Emerging Cross-Sectional Technologies 6 Active

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