Inventor · disambiguated record
David A. Butterfield
Also filed as: BUTTERFIELD DAVID A
7 granted patents·456 citations·filing 1985–2006
89Inventor score
Files withAMERICAN TELEPHONE & TELEGRAPH2SUN MICROSYSTEMS INC2JONES EXHAUST SYSTEMS1JONES EXHAUST SYSTEMS INC1ORACLE AMERICA INC1
Top patents by PatentIndex Score
7 records- 0195US7925872B2Method and apparatus for using a directory service to facilitate centralized device namingORACLE AMERICA INC·Filed 2006·Granted Apr 12, 2011·141 cites·20 claims
- 0290US7203774B1Bus specific device enumeration system and methodSUN MICROSYSTEMS INC·Filed 2003·Granted Apr 10, 2007·112 cites·26 claims
- 0388US4747040ADual operating system computerAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted May 24, 1988·153 cites·4 claims
- 0464US6687767B2Efficient direct memory access transfer of data and check information to and from a data storage deviceSUN MICROSYSTEMS INC·Filed 2001·Granted Feb 3, 2004·11 cites·56 claims
- 0553US6942061B2Muffler for internal combustion engineJONES EXHAUST SYSTEMS INC·Filed 2003·Granted Sep 13, 2005·11 cites·17 claims
- 0649US4744048ADisplay context switching arrangementAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted May 10, 1988·20 cites·3 claims
- 0744USD492634SBidirectional mufflerJONES EXHAUST SYSTEMS·Filed 2003·Granted Jul 6, 2004·8 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →