Inventor · disambiguated record
Geoffrey Duggan
Also filed as: DUGGAN GEOFFREY
11 granted patents·1 pending application·252 citations·filing 1994–2006
92Inventor score
Top patents by PatentIndex Score
12 records- 0174US5747827AOptoelectronic semiconductor device having a minibandSHARP KK·Filed 1996·Granted May 5, 1998·46 cites·33 claims
- 0273US6072189AIII-nitride optoelectronic semiconductor device containing Lattice mismatched III-nitride semiconductor materialsSHARP KK·Filed 1998·Granted Jun 6, 2000·59 cites·17 claims
- 0368US6146458AMolecular beam epitaxy methodSHARP KK·Filed 1998·Granted Nov 14, 2000·22 cites·15 claims
- 0467US5812577ASurface-emitting laserSHARP KK·Filed 1995·Granted Sep 22, 1998·30 cites·11 claims
- 0566US6695913B1III-Nitride optoelectronic semiconductor device containing lattice mismatched III-Nitride semiconductor materialsSHARP KK·Filed 2000·Granted Feb 24, 2004·16 cites·43 claims
- 0661US5473173AQuantum well structure having differentially strained quantum well layersSHARP KK·Filed 1994·Granted Dec 5, 1995·24 cites·10 claims
- 0755US5571376AQuantum device and method of making such a deviceSHARP KK·Filed 1995·Granted Nov 5, 1996·20 cites·15 claims
- 0849US5991321ASeparate confinement heterostructure laser deviceSHARP KK·Filed 1997·Granted Nov 23, 1999·15 cites·28 claims
- 0941US6001173AMethod of forming a compound semiconductor filmSHARP KK·Filed 1997·Granted Dec 14, 1999·12 cites·16 claims
- 1038US2009161713A1Surface emitting optical devicesFIRECOMMS LTD·Filed 2006·Application pending·0 cites
- 1136US6084898ALaser devices including separate confinement heterostructureSHARP KK·Filed 1997·Granted Jul 4, 2000·7 cites·45 claims
- 1229US5828685ASemiconductor laser device and a method of growing a semiconductor laser deviceSHARP KK·Filed 1996·Granted Oct 27, 1998·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →