Inventor · Richmond, KY, US

John Krawczyk

15Patents

4h-index

19Co-inventors

46Inventor score

Filing activity: Nov 4, 2003 → Jul 19, 2007

Most-cited inventions

Patent	Title	Area	Cited by	Status
US7438392B2	Microfluidic substrates having improved fluidic channels	Performing Operations; Transporting	15	Active
US7041226B2	Methods for improving flow through fluidic channels	Performing Operations; Transporting	12	Expired
US7766455B2	Flexible adhesive materials for micro-fluid ejection heads and methods relating thereto	Performing Operations; Transporting	7	Active
US7560039B2	Methods of deep reactive ion etching	Performing Operations; Transporting	4	Active
US7938975B2	Method for making a micro-fluid ejection device	Performing Operations; Transporting	2	Active
US7271105B2	Method for making a micro-fluid ejection device	Performing Operations; Transporting	2	Expired
US7271104B2	Method for dry etching fluid feed slots in a silicon substrate	Performing Operations; Transporting	1	Expired
US7344994B2	Multiple layer etch stop and etching method	Performing Operations; Transporting	1	Expired
US7767103B2	Micro-fluid ejection assemblies	Performing Operations; Transporting	0	Active
US7413915B2	Micro-fluid ejection head containing reentrant fluid feed slots	Performing Operations; Transporting	0	Expired
US7524430B2	Fluid ejection device structures and methods therefor	Performing Operations; Transporting	0	Expired
US7560223B2	Fluid ejection device structures and methods therefor	Physics	0	Active
US7202178B2	Micro-fluid ejection head containing reentrant fluid feed slots	Performing Operations; Transporting	0	Expired
US7850284B2	Method for dry etching fluid feed slots in a silicon substrate	Performing Operations; Transporting	0	Active
US7273266B2	Micro-fluid ejection assemblies	Performing Operations; Transporting	0	Expired

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