Inventor · disambiguated record
Charles F. Raasch
Also filed as: RAASCH CHARLES · RAASCH CHARLES F · RAASCH CHARLES FREDERICK
22 granted patents·3 pending applications·720 citations·filing 1990–2020
96Inventor score
Top patents by PatentIndex Score
25 records- 0187US5402492ASecurity system for a stand-alone computerAST RESEARCH INC·Filed 1993·Granted Mar 28, 1995·144 cites·17 claims
- 0283US5237692AInternal interrupt controller for a peripheral controllerAST RESEARCH INC·Filed 1990·Granted Aug 17, 1993·103 cites·13 claims
- 0382US6690776B1Communication on hold notifierCONEXANT SYSTEMS INC·Filed 2000·Granted Feb 10, 2004·37 cites·49 claims
- 0481US5280283AMemory mapped keyboard controllerAST RESEARCH INC·Filed 1990·Granted Jan 18, 1994·42 cites·10 claims
- 0580US6100875AKeyboard pointing deviceAST RESEARCH INC·Filed 1993·Granted Aug 8, 2000·96 cites·11 claims
- 0679US10930138B2Apparatus and method for determining mounting state of a trailer tracking deviceSPIREON INC·Filed 2020·Granted Feb 23, 2021·1 cites·10 claims
- 0778US11299219B2Distributed volumetric cargo sensor systemSPIREON INC·Filed 2019·Granted Apr 12, 2022·3 cites·21 claims
- 0878US7634070B2Modem with hold and quick connect functionalitySILICON LAB INC·Filed 2006·Granted Dec 15, 2009·6 cites·30 claims
- 0978US5642110AMemory mapped keyboard controllerAST RESEARCH INC·Filed 1994·Granted Jun 24, 1997·34 cites·7 claims
- 1075US5031227AEdge enhancement and smoothing in digital imagesLORAL AEROSPACE CORP·Filed 1990·Granted Jul 9, 1991·59 cites·4 claims
- 1168US5333273AProtected hot key function for microprocessor-based computer systemAST RESEARCH INC·Filed 1992·Granted Jul 26, 1994·53 cites·7 claims
- 1267US6714645B1Telephone line interface circuit without hookswitch relayCONEXANT SYSTEMS INC·Filed 2000·Granted Mar 30, 2004·9 cites·25 claims
- 1366US7587034B2Use of modem on hold for network management and telephone accessSILICON LAB INC·Filed 2005·Granted Sep 8, 2009·2 cites·9 claims
- 1466US7443966B2Using modems to place modem connections on hold and to maintain upper layer network connectionSILICON LAB INC·Filed 2005·Granted Oct 28, 2008·2 cites·10 claims
- 1564US5408624AMethod and apparatus for down-loading instructions from a host computer system to a memory in a peripheral controller for execution by a core microprocessor in the peripheral controllerAST RESEARCH INC·Filed 1993·Granted Apr 18, 1995·36 cites·13 claims
- 1664US5261114AMethod and apparatus for providing down-loaded instructions for execution by a peripheral controllerAST RESEARCH INC·Filed 1990·Granted Nov 9, 1993·36 cites·13 claims
- 1758US5717565AEasily changeable notebook keyboardAST RESEARCH INC·Filed 1995·Granted Feb 10, 1998·33 cites·12 claims
- 1855US10636280B2Apparatus and method for determining mounting state of a trailer tracking deviceSPIREON INC·Filed 2018·Granted Apr 28, 2020·0 cites·6 claims
- 1954US6912276B1Modem on holdSILICON LAB INC·Filed 1999·Granted Jun 28, 2005·22 cites·23 claims
- 2047US6996167B2Modem identification and diagnosticsMINDSPEED TECH INC·Filed 2001·Granted Feb 7, 2006·1 cites·41 claims
- 2147US6980590B1Processing diagnostic and identification data in an analog modem systemMINDSPEED TECH INC·Filed 2000·Granted Dec 27, 2005·1 cites·46 claims
- 2247US2008276009A1Enabling Efficient Communication Between a Host and Multiple USB DevicesMESA JOE·Filed 2008·Application pending·0 cites
- 2341US10605847B1Verification of installation of vehicle starter disable and enable circuitSPIREON INC·Filed 2019·Granted Mar 31, 2020·0 cites·11 claims
- 2439US2003214939A1Method and apparatus for providing life line service to access gateway telephony subscribersFiled 2002·Application pending·0 cites
- 2537US2018352198A1Pattern detection to determine cargo statusSPIREON INC·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →