Inventor · disambiguated record
Derek P. A. Pearson
Also filed as: PEARSON DEREK P A
5 granted patents·55 citations·filing 1984–1997
81Inventor score
Top patents by PatentIndex Score
5 records- 0170US4662920ACast component of nickel alloys containing large amounts of chromiumJOHNSON MATTHEY PLC·Filed 1984·Granted May 5, 1987·18 cites·7 claims
- 0259US6022630APlatinum and cobalt multilayer recording materials system and process for making sameJOHNSON MATTHEY ELECT INC·Filed 1997·Granted Feb 8, 2000·13 cites·38 claims
- 0350US5702830AMagneto-optical recording materials systemJOHNSON MATTHEY PLC·Filed 1993·Granted Dec 30, 1997·7 cites·29 claims
- 0448US5837386AMultilayer film materials systemJOHNSON MATTHEY PLC·Filed 1997·Granted Nov 17, 1998·9 cites·12 claims
- 0543US5851363AMultilayer film materials systemJOHNSON MATTHEY PLC·Filed 1994·Granted Dec 22, 1998·8 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →