Inventor · disambiguated record
Elmer V. Carlson
Also filed as: CARLSON ELMER · CARLSON ELMER V
21 granted patents·1,197 citations·filing 1971–2005
97Inventor score
Files withINDUSTRIAL RESEARCH PROD INC11KNOWLES ELECTRONICS INC4ETYMOTIC RES INC3INDUSTRIAL RES PROD INC1KNOWLES ELECTRONICS LLC1
Top patents by PatentIndex Score
21 records- 0197US6694034B2Transmission detection and switch system for hearing improvement applicationsETYMOTIC RES INC·Filed 2000·Granted Feb 17, 2004·194 cites·40 claims
- 0297US4063050AAcoustic transducer with improved electret assemblyINDUSTRIAL RESEARCH PROD INC·Filed 1976·Granted Dec 13, 1977·50 cites·10 claims
- 0396US4272654AAcoustic transducer of improved constructionINDUSTRIAL RESEARCH PROD INC·Filed 1979·Granted Jun 9, 1981·102 cites·3 claims
- 0493US3935398ATransducer with improved armature and yoke constructionINDUSTRIAL RESEARCH PROD INC·Filed 1971·Granted Jan 27, 1976·96 cites·3 claims
- 0593US3930560ADamping elementINDUSTRIAL RESEARCH PROD INC·Filed 1974·Granted Jan 6, 1976·57 cites·1 claims
- 0692US4800982ACleanable in-the-ear electroacoustic transducerINDUSTRIAL RESEARCH PROD INC·Filed 1987·Granted Jan 31, 1989·149 cites·11 claims
- 0784US6876749B1Microphone for hearing aid and communications applications having switchable polar and frequency response characteristicsETYMOTIC RES INC·Filed 2000·Granted Apr 5, 2005·28 cites·21 claims
- 0881US7245728B2Microphone for hearing aid and communications applications having switchable polar and frequency response characteristicsETYMOTIC RES INC·Filed 2005·Granted Jul 17, 2007·8 cites·21 claims
- 0977US7164776B2Vibration balanced receiverKNOWLES ELECTRONICS LLC·Filed 2001·Granted Jan 16, 2007·21 cites·58 claims
- 1077US4956868AMagnetically shielded electromagnetic acoustic transducerINDUSTRIAL RESEARCH PROD INC·Filed 1989·Granted Sep 11, 1990·59 cites·5 claims
- 1176US4867267AHearing aid transducerINDUSTRIAL RESEARCH PROD INC·Filed 1989·Granted Sep 19, 1989·59 cites·4 claims
- 1276US4006321ATransducer coupling systemINDUSTRIAL RESEARCH PROD INC·Filed 1976·Granted Feb 1, 1977·36 cites·6 claims
- 1375US5068901ADual outlet passage hearing aid transducerKNOWLES ELECTRONICS INC·Filed 1990·Granted Nov 26, 1991·57 cites·14 claims
- 1471US5335286AElectret assemblyKNOWLES ELECTRONICS INC·Filed 1992·Granted Aug 2, 1994·50 cites·11 claims
- 1568US6307944B1System for mitigating RF interference in a hearing aidKNOWLES ELECTTRONICS LLC·Filed 1999·Granted Oct 23, 2001·57 cites·3 claims
- 1664US4151480AFET Amplifier with protective circuitINDUSTRIAL RES PROD INC·Filed 1977·Granted Apr 24, 1979·24 cites·1 claims
- 1763US5101435ACombined microphone and magnetic induction pickup systemKNOWLES ELECTRONICS INC·Filed 1990·Granted Mar 31, 1992·35 cites·17 claims
- 1863US4509193AMiniature acoustical transducer with filter/regulator power supply circuitINDUSTRIAL RESEARCH PROD INC·Filed 1983·Granted Apr 2, 1985·28 cites·17 claims
- 1959US4730283AAcoustic transducer with improved electrode spacingINDUSTRIAL RESEARCH PROD INC·Filed 1986·Granted Mar 8, 1988·31 cites·6 claims
- 2051US4807612APassive ear protectorINDUSTRIAL RESEARCH PROD INC·Filed 1987·Granted Feb 28, 1989·39 cites·16 claims
- 2147US6654477B1Receiver and method of constructionKNOWLES ELECTRONICS INC·Filed 1997·Granted Nov 25, 2003·17 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →