Assignee
NAT RES DEV
GB1,186 patents
Top patents by PatentIndex Score
US4826490AMay 2, 1989
Safety device for hypodermic needle or the like
NAT RES DEV250 citations98
US4798850AJan 17, 1989
Blended-fibre filter material
NAT RES DEV198 citations98
US4441489AApr 10, 1984
Orthopaedic splints
NAT RES DEV270 citations98
US4318784AMar 9, 1982
Enzymatic processes
NAT RES DEV334 citations98
US4209434AJun 24, 1980
Dental cement containing poly(carboxylic acid), chelating agent and glass cement powder
NAT RES DEV236 citations98
US4877516AOct 31, 1989
Manipulating particulate matter
NAT RES DEV146 citations97
US4799258AJan 17, 1989
Apparatus and methods for granting access to computers
NAT RES DEV272 citations97
US4438258AMar 20, 1984
Hydrogels
NAT RES DEV113 citations97
US4128137ADec 5, 1978
Peripatetic vehicles
NAT RES DEV152 citations97
US6617861B1Sep 9, 2003
Apparatus and method for measuring and monitoring complexpermittivity of materials
NAT RES DEV57 citations96
US5147646ASep 15, 1992
Hydrogel containing envelopes
NAT RES DEV87 citations96
US5104865AApr 14, 1992
Iron complexes of hydroxypyridones useful for treating iron overload
NAT RES DEV46 citations96
US5006266AApr 9, 1991
Manipulating means utilizing ultrasonic wave energy for use with particulate material
NAT RES DEV141 citations96
US4955379ASep 11, 1990
Motion artefact rejection system for pulse oximeters
NAT RES DEV375 citations96
US4912118AMar 27, 1990
Pharmaceutical compositions
NAT RES DEV44 citations96
US4666927AMay 19, 1987
Pharmaceutical compositions of hydroxypyridones
NAT RES DEV54 citations96
US4615705AOct 7, 1986
Antimicrobial surgical implants
NAT RES DEV152 citations96
US4598044AJul 1, 1986
Enhanced luminescent or luminometric assay
NAT RES DEV65 citations96
US4585780AApr 29, 1986
Pharmaceutical compositions
NAT RES DEV53 citations96
US4584188AApr 22, 1986
Hydrogels
NAT RES DEV60 citations96
US4570625AFeb 18, 1986
Apparatus for external fixation of bone fractures
NAT RES DEV168 citations96
US4545616AOct 8, 1985
Mobile chair with elevating seat
NAT RES DEV90 citations96
US4542176ASep 17, 1985
Preparation of particulate gels
NAT RES DEV53 citations96
US4532660AAug 6, 1985
Endoprosthetic bone joint devices
NAT RES DEV169 citations96
US4480333AOct 30, 1984
Method and apparatus for active sound control
NAT RES DEV67 citations96
US4476590AOct 16, 1984
Antimicrobial surgical implants
NAT RES DEV227 citations96
US4204283AMay 27, 1980
Prosthetic valve
NAT RES DEV262 citations96
US4165479AAug 21, 1979
Nuclear magnetic resonance apparatus and methods
NAT RES DEV70 citations96
US4160971AJul 10, 1979
Transponders
NAT RES DEV164 citations96
US4143018AMar 6, 1979
Cements
NAT RES DEV157 citations96
US4115730ASep 19, 1978
Nuclear magnetic resonance apparatus and methods
NAT RES DEV93 citations96
US4085466AApr 25, 1978
Prosthetic joint device
NAT RES DEV937 citations96
US5084030AJan 28, 1992
Safety device for hypodermic needle or the like
NAT RES DEV105 citations95
US4957490ASep 18, 1990
Injection device
NAT RES DEV87 citations95
US4879011ANov 7, 1989
Process for controlling a reaction by ultrasonic standing wave
NAT RES DEV102 citations95
US4839155AJun 13, 1989
Iodotamoxifen derivatives and use for estrogen receptor-positive breast cancer detection and therapy
NAT RES DEV85 citations95
US4814182AMar 21, 1989
Controlled release device
NAT RES DEV90 citations95
US4787927ANov 29, 1988
Fabrication of optical fibers
NAT RES DEV69 citations95
US4655885AApr 7, 1987
Surface-modified electrode and its use in a bioelectrochemical process
NAT RES DEV440 citations95
US4472500ASep 18, 1984
Rat myeloma cell lines
NAT RES DEV163 citations95
US4459267AJul 10, 1984
Pipette means
NAT RES DEV83 citations95
US4405249ASep 20, 1983
Dispensing apparatus and method
NAT RES DEV129 citations95
US4369664AJan 25, 1983
Pipette means
NAT RES DEV69 citations95
US4237006ADec 2, 1980
Cyclone separator
NAT RES DEV91 citations95
US4232404ANov 11, 1980
Endoprosthetic ankle joint
NAT RES DEV135 citations95
US4167662ASep 11, 1979
Methods and apparatus for cutting and welding
NAT RES DEV99 citations95
US4141345AFeb 27, 1979
Cervical dilation measurement instruments
NAT RES DEV57 citations95
US4075091AFeb 21, 1978
Method for effecting heat or mass transfer
NAT RES DEV63 citations95
US4042779AAug 16, 1977
Coincident microphone simulation covering three dimensional space and yielding various directional outputs
NAT RES DEV98 citations95
US3989512ANov 2, 1976
Plasma heat treatment means and method
NAT RES DEV62 citations95
Showing the top 50 of 1,186 patents by PatentIndex Score.