Inventor · Zion, IL, US

John L. Vcelka

13Patents
10h-index
7Co-inventors
61Inventor score

Filing activity: Jul 14, 1976 → Oct 10, 1989

Most-cited inventions

PatentTitleAreaCited byStatus
US4296949A Rotatable connecting device for I.V. administration set Emerging Cross-Sectional Technologies 266 Expired
US4891134A Sample filtration device Physics 55 Expired
US4990253A Fluid sample filtration device Physics 40 Expired
US4049034A Attaching means and method for attaching flexible tubing to a plastic container Emerging Cross-Sectional Technologies 31 Expired
US4749658A Two-way valve for blood analyzing apparatus Emerging Cross-Sectional Technologies 16 Expired
US4364383A I.V. Flashback indication Emerging Cross-Sectional Technologies 16 Expired
USD283441S Intravenous administration locking device General 15 Expired
US4152378A Container closure having automatic opening means Emerging Cross-Sectional Technologies 15 Expired
US4456009A Intravenous pump chamber assembly Human Necessities 14 Expired
USD309012S Immunoassay test kit or the like General 11 Expired
USD270089S Pump cassette for an IV pump apparatus General 6 Expired
US4318812A Compact filter Performing Operations; Transporting 4 Expired
USD288480S Blood filter General 1 Expired

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