Inventor · disambiguated record

Derek N. A. Speakman

Also filed as: SPEAKMAN DEREK N A · SPEAKMAN DEREK NORMAN ALFRED

2 granted patents·11 citations·filing 1975–1977

55Inventor score
Technology areasC09D
Files withICI LTD2

Top patents by PatentIndex Score

2 records

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →