Inventor · disambiguated record
David A. Spear
Also filed as: SPEAR DAVID A · SPEAR DAVID A H · SPEAR DAVID ALAN HUGH
8 granted patents·435 citations·filing 1991–2010
90Inventor score
Top patents by PatentIndex Score
8 records- 0196US5642985ASwept turbomachinery bladeUNITED TECHNOLOGIES CORP·Filed 1995·Granted Jul 1, 1997·139 cites·3 claims
- 0296US5397215AFlow directing assembly for the compression section of a rotary machineUNITED TECHNOLOGIES CORP·Filed 1993·Granted Mar 14, 1995·151 cites·10 claims
- 0387USRE43710ESwept turbomachinery bladeSPEAR DAVID A·Filed 2001·Granted Oct 2, 2012·43 cites·7 claims
- 0487USRE38040ESwept turbomachinery bladeUNITED TECHNOLOGIES CORP·Filed 1999·Granted Mar 18, 2003·48 cites·37 claims
- 0562US6075800ABonding ridge structure laser diodes to substratesNORTEL NETWORKS CORP·Filed 1998·Granted Jun 13, 2000·24 cites·4 claims
- 0651US5460488AShrouded fan blade for a turbine engineUNITED TECHNOLOGIES CORP·Filed 1994·Granted Oct 24, 1995·25 cites·10 claims
- 0744USRE45689ESwept turbomachinery bladeSPEAR DAVID A·Filed 2010·Granted Sep 29, 2015·0 cites·7 claims
- 0831US5196368ASemiconductor device manufactureNORTHERN TELECOM LTD·Filed 1991·Granted Mar 23, 1993·5 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →