Inventor · disambiguated record
David Duane Chapman
Also filed as: CHAPMAN DAVID D · CHAPMAN DAVID DUANE · CHAPMAN DAVID J
16 granted patents·1 pending application·211 citations·filing 1981–2020
93Inventor score
Top patents by PatentIndex Score
17 records- 0193US9515690B1Receiver with multi-spectrum parallel amplificationINTERSTATE ELECTRONICS CORP·Filed 2014·Granted Dec 6, 2016·13 cites·9 claims
- 0290US10107919B1Satellite positioning system receivers with microelectromechanical systems oscillatorsINTERSTATE ELECTRONICS CORP·Filed 2016·Granted Oct 23, 2018·8 cites·25 claims
- 0389US9979420B1Receiver with multi-spectrum parallel amplificationINTERSTATE ELECTRONICS CORP·Filed 2016·Granted May 22, 2018·6 cites·19 claims
- 0487US9356639B1Receiver with multi-spectrum parallel amplificationINTERSTATE ELECTRONICS CORP·Filed 2014·Granted May 31, 2016·9 cites·11 claims
- 0584US11675090B1Satellite positioning system receivers with microelectromechanical systems oscillatorsINTERSTATE ELECTRONICS CORP·Filed 2020·Granted Jun 13, 2023·1 cites·28 claims
- 0680US9246664B1Receiver with multi-spectrum parallel amplificationINTERSTATE ELECTRONICS CORP·Filed 2014·Granted Jan 26, 2016·5 cites·12 claims
- 0779US10200068B1Receiver with multi-spectrum parallel amplificationINTERSTATE ELECTRONICS CORP·Filed 2018·Granted Feb 5, 2019·2 cites·24 claims
- 0879US4425643AMulti-speed logic analyzerTEKTRONIX INC·Filed 1981·Granted Jan 10, 1984·58 cites·8 claims
- 0971US4541100AApparatus including a programmable set-up and hold featureTEKTRONIX INC·Filed 1982·Granted Sep 10, 1985·26 cites·4 claims
- 1070US11101829B1Receiver with multi-spectrum parallel amplificationINTERSTATE ELECTRONICS CORP·Filed 2020·Granted Aug 24, 2021·0 cites·28 claims
- 1169US4752928ATransaction analyzerTEKTRONIX INC·Filed 1985·Granted Jun 21, 1988·42 cites·16 claims
- 1263US10637514B1Receiver with multi-spectrum parallel amplificationINTERSTATE ELECTRONICS CORP·Filed 2019·Granted Apr 28, 2020·0 cites·26 claims
- 1360US4434488ALogic analyzer for a multiplexed digital busTEKTRONIX INC·Filed 1981·Granted Feb 28, 1984·17 cites·6 claims
- 1457US10866325B1Satellite positioning system receivers with microelectromechanical systems oscillatorsINTERSTATE ELECTRONICS CORP·Filed 2018·Granted Dec 15, 2020·0 cites·18 claims
- 1545US4748556AVariable tracking word recognizer for detecting the occurrence of a dynamic-variable addressTEKTRONIX INC·Filed 1985·Granted May 31, 1988·15 cites·5 claims
- 1642US4701696ARetargetable buffer probeTEKTRONIX INC·Filed 1985·Granted Oct 20, 1987·9 cites·8 claims
- 1740US2007178871A1Communication system, converter for use therein and method of signallingNEW TRANSDUCERS LTD·Filed 2004·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when David Duane Chapman files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →