Inventor · disambiguated record
Donald E. Griffiths
Also filed as: GRIFFITHS DONALD E · GRIFFITHS DONALD ERIC
7 granted patents·157 citations·filing 1974–1999
87Inventor score
Top patents by PatentIndex Score
7 records- 0192US3940794AStacked flexible record disk storage apparatus having enhanced disk separationIBM·Filed 1974·Granted Feb 24, 1976·41 cites·135 claims
- 0272US5551141AMethod of injection moulding a polymeric material insert into a metal shellMETAL BOX PLC·Filed 1994·Granted Sep 3, 1996·46 cites·23 claims
- 0368US4019204AFluidic transducer access opening in a stack of flexible record disksIBM·Filed 1975·Granted Apr 19, 1977·14 cites·42 claims
- 0468US3969767ASpacer supports for flexible disk structuresIBM·Filed 1975·Granted Jul 13, 1976·14 cites·11 claims
- 0567US3931645AFlexible disk storage apparatus having disks of various radii for enhancing axial disk locationIBM·Filed 1974·Granted Jan 6, 1976·11 cites·11 claims
- 0661US6564958B1Tamper evident closuresCROWN CORK & SEAL TECH CORP·Filed 1999·Granted May 20, 2003·23 cites·19 claims
- 0749US3974524AMagnetic storage apparatus employing flexible record disks with peripheral disk-identification meansIBM·Filed 1975·Granted Aug 10, 1976·8 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →