Inventor · Ipswich, GB

Stephen A. Cassidy

30Patents
15h-index
32Co-inventors
81Inventor score

Filing activity: Mar 29, 1985 → Sep 8, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US4796970A Optical fibre transmission lines Physics 61 Expired
US4691896A Optical fibre transmission line Physics 53 Expired
US5166992A Wavelength selective optical waveguide coupler Physics 29 Expired
US4948097A Method and apparatus for installing transmission lines Physics 26 Expired
US5645267A Method and apparatus for installing transmission lines Physics 25 Expired
US4740053A Sheathed optical fiber cable Physics 21 Expired
US5748813A Free space optical communication system Electricity 21 Expired
US5583689A Filter with preselected attenuation/wavelength characteristic Electricity 20 Expired
US4923278A Temperature desensitization of delay in optical fibres Physics 20 Expired
US4896932A Method of forming an optical fibre junction Physics 19 Expired
US5456450A Method and apparatus for installing transmission lines Physics 18 Expired
US5169126A Method and apparatus for installing transmission lines Physics 18 Expired
US6328283A Method and apparatus for installing transmission lines Physics 18 Expired
US5121901A Sheathed optical fibres and method of installing such fibres Physics 16 Expired
US5623565A Optical sensor/actuator communication system with common control site independently responding to inputs from sensors and controlling associated actuators Physics 15 Expired
US5416864A Optical fiber amplified tapping network and method using same Electricity 14 Expired
US4867522A Wavelength sensitive optical devices Electricity 12 Expired
US5504607A Optical interconnection network Electricity 10 Expired
US6173107A Method and apparatus for installing transmissions Physics 10 Expired
US5666224A Optical grating and method of fabricating an optical grating Physics 9 Expired
US5448665A Wavelength-selective optical device utilizing a selectively variable surface acoustic wave grating in a polar organic material Physics 9 Expired
US6172811A Optical grating and a method of fabricating an optical grating Physics 7 Expired
US5253094A Optical interconnection network Electricity 4 Expired
US10021662B2 Base station time synchronization in a wireless network Electricity 2 Active
US5108173A Orientating optical fibres Physics 2 Expired

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