Inventor

NORTH JOHN R

GB7 patents

⚠️ This page may combine multiple inventors who share the name “NORTH JOHN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PORTON DIAGNOSTICS INC

3 patents

US5221457AJun 22, 1993

NORTH JOHN R

1 patent

US4882288ANov 21, 1989

Assay technique and equipment

NORTH JOHN R205 citations94

AT & T CORP

1 patent

US5446880AAug 29, 1995

Database communication system that provides automatic format translation and transmission of records when the owner identified for the record is changed

AT & T CORP152 citations90

OWEN STEPHEN

1 patent

US4801553AJan 31, 1989

Methods of and apparatus for preparing tissue specimens

OWEN STEPHEN120 citations90

PORTON PROD LTD

1 patent

US5002877AMar 26, 1991

Production of plasminogen activator from cells to which lectin is added to the culture medium

PORTON PROD LTD0 citations36

NORTH JOHN R

PORTON DIAGNOSTICS INC

System for analyzing ion levels in fluids

Diagnostic electrode for evaluating circuitry of an analyzer

Diagnostic electrode

NORTH JOHN R

Assay technique and equipment

AT & T CORP

Database communication system that provides automatic format translation and transmission of records when the owner identified for the record is changed

OWEN STEPHEN

Methods of and apparatus for preparing tissue specimens

PORTON PROD LTD

Production of plasminogen activator from cells to which lectin is added to the culture medium