Inventor · Westford, MA, US

Ralph Stankowski

51Patents
15h-index
54Co-inventors
87Inventor score

Filing activity: Feb 28, 1992 → Mar 28, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
USD859136S1 Tubing clamp General 382 Active
USD867867S1 Tubing clamp General 372 Active
US5269917A Filtration apparatus having stress relief groove Performing Operations; Transporting 76 Expired
US5439587A Self priming filter apparatus Human Necessities 71 Expired
US7247245B1 Filtration cartridge and process for filtering a slurry Performing Operations; Transporting 44 Expired
US6635175B2 Filter housing Performing Operations; Transporting 43 Expired
US5443723A Membrane support and sealing apparatus Emerging Cross-Sectional Technologies 40 Expired
US6533933B1 Filtration module including unitary filter cartridge-bowl construction Performing Operations; Transporting 39 Expired
US6149109A Cable mount construction Emerging Cross-Sectional Technologies 33 Expired
US6652749B2 Disposable fluid separation device and manifold assembly design with easy change-out feature Performing Operations; Transporting 24 Expired
US8753097B2 Method and system for high viscosity pump Emerging Cross-Sectional Technologies 23 Active
US5674395A Multiple sample separator Performing Operations; Transporting 23 Expired
US7959805B2 Manifold adaptor plate for filtration apparatus Performing Operations; Transporting 21 Active
US7163237B2 Separation module Performing Operations; Transporting 18 Expired
US8070945B2 Filtration module including unitary filter cartridge-bowl construction Performing Operations; Transporting 17 Active
USD859971S1 Tubing clamp General 14 Active
US7056436B2 Disposable fluid separation device and manifold assembly design with easy change-out feature Performing Operations; Transporting 10 Expired
US7469932B2 Receptor for a separation module Mechanical Engineering; Lighting; Heating 8 Active
USD859970S1 Tubing clamp General 8 Active
US7153425B2 Process and filter for filtering a slurry Performing Operations; Transporting 7 Expired
USD858265S1 Tubing clamp General 6 Active
USD858264S1 Tubing clamp General 5 Active
USD865507S1 Tubing clamp General 4 Active
US7445710B2 Filtration module including unitary filter cartridge-bowl construction Performing Operations; Transporting 4 Expired
US7378017B2 Disposable fluid separation device and manifold assembly design with easy change-out feature Performing Operations; Transporting 4 Expired

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