Inventor · disambiguated record
David E. Birt
Also filed as: BIRT DAVID E · BIRT JR DAVID
5 granted patents·45 citations·filing 1978–1999
79Inventor score
Top patents by PatentIndex Score
5 records- 0165US4277071ADisc records having surface markingsEMI LTD·Filed 1978·Granted Jul 7, 1981·12 cites·1 claims
- 0247US4231730AMoulding video discsEMI LTD·Filed 1979·Granted Nov 4, 1980·12 cites·10 claims
- 0345US4364816ARecord matrix preparationEMI LTD·Filed 1980·Granted Dec 21, 1982·7 cites·4 claims
- 0440US6497078B1Adhesive composition for chemically inert substrateFORTY TEN L L C·Filed 1999·Granted Dec 24, 2002·10 cites·3 claims
- 0531US4288481AFoil video discsEMI LTD·Filed 1980·Granted Sep 8, 1981·4 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →