Inventor · disambiguated record
Derek Johnston
Also filed as: JOHNSTON DEREK · JOHNSTON DEREK S · JOHNSTON DEREK SCOTT
7 granted patents·2 pending applications·201 citations·filing 1998–2008
87Inventor score
Top patents by PatentIndex Score
9 records- 0191US6819252B2Carbon monoxide and smoke detection apparatusBRK BRANDS INC·Filed 2003·Granted Nov 16, 2004·51 cites·28 claims
- 0282US6426703B1Carbon monoxide and smoke detection apparatusBRK BRANDS INC·Filed 1998·Granted Jul 30, 2002·79 cites·36 claims
- 0381US7417540B2Wireless linking of smoke/CO detection unitsBRK BRANDS INC·Filed 2006·Granted Aug 26, 2008·24 cites·44 claims
- 0478US8066859B2Electrochemical carbon monoxide sensor supervisionJOHNSTON DEREK·Filed 2008·Granted Nov 29, 2011·11 cites·6 claims
- 0567US6762688B2Device with silencing circuitryBRK BRANDS INC·Filed 2002·Granted Jul 13, 2004·25 cites·4 claims
- 0661US6731207B1Modular detector systemBRK BRANDS INC·Filed 2000·Granted May 4, 2004·11 cites·27 claims
- 0746US2004257226A1Modular detector systemBRK BRANDS INC·Filed 2004·Application pending·0 cites
- 0842US2002044061A1Carbon monoxide and smoke detection apparatusBRK BRANDS INC·Filed 2001·Application pending·0 cites
- 0941US7009521B2Power supply and interconnect detector systemBRK BRANDS INC·Filed 2001·Granted Mar 7, 2006·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →