Inventor · disambiguated record

Douglas Macdonald

Also filed as: MACDONALD DOUGLAS · MACDONALD DOUGLAS MALCOLM

3 granted patents·64 citations·filing 1996–2019

69Inventor score

Technology areasH04M G01N

Files withBELL CANADA2 EXCELITAS CANADA INC1

Top patents by PatentIndex Score

3 records

0161US5933481AMethod of controlling call traffic in a telecommunication systemBELL CANADA·Filed 1996·Granted Aug 3, 1999·45 cites·5 claims
0246US11307241B2Maintaining stable optical output of solid state illumination systemEXCELITAS CANADA INC·Filed 2019·Granted Apr 19, 2022·0 cites·19 claims
0341US5719930AMethod of volume screening signalling messages in a telecommunication systemBELL CANADA·Filed 1996·Granted Feb 17, 1998·19 cites·7 claims

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