Inventor · Ashford, GB

Stephen James Field

20Patents

7h-index

18Co-inventors

66Inventor score

Filing activity: Sep 19, 1996 → Jul 9, 2019

Most-cited inventions

Patent	Title	Area	Cited by	Status
US7152602B2	Mask apparatus	Human Necessities	100	Expired
US5832920A	Tracheal tube with integral suction lumen	Human Necessities	93	Expired
US5919183A	Introducers and assemblies	Human Necessities	40	Expired
US6673291B1	Methods of manufacturing medico-surgical tubes	Performing Operations; Transporting	23	Expired
US8398596B2	Needle assemblies and methods	Human Necessities	21	Active
US7726315B2	Valves	Human Necessities	18	Active
US8092390B2	Medico-surgical devices	Human Necessities	16	Expired
US9642591B2	Medical-surgical devices	Human Necessities	4	Active
US9636082B2	Medical-surgical devices	Human Necessities	4	Active
US8783254B2	Tracheostomy tubes	Human Necessities	1	Active
US9743904B2	Medico-surgical devices	Human Necessities	1	Active
US12082842B2	Echogenic needle assemblies and method of use thereof	Human Necessities	0	Active
US9907572B2	Syringe assemblies	Human Necessities	0	Active
US10045756B2	Medical devices	Human Necessities	0	Active
US8584677B2	Medico-surgical devices	Human Necessities	0	Active
US10639002B2	Medical devices	Human Necessities	0	Active
US10894138B2	Tracheostomy tube assemblies and inner cannulae	Human Necessities	0	Active
US10478150B2	Medico—surgical devices	Human Necessities	0	Active
US12115311B2	Tracheal tube and method of assembling a tracheostomy tube	Human Necessities	0	Active
US10617445B2	Syringe assemblies	Human Necessities	0	Active

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