Inventor · disambiguated record
Elwood G. Norris
Also filed as: NORRIS ELWOOD · NORRIS ELWOOD G · NORRIS ELWOOD GRANT
106 granted patents·29 pending applications·3,986 citations·filing 1976–2025
99Inventor score
Files withAMERICAN TECH CORP34TURTLE BEACH CORP30WRAP TECH INC24PARAMETRIC SOUND CORP14NORRIS ELWOOD G9
Top patents by PatentIndex Score
135 records- 0198US11287226B2Systems and methods for non-lethal, near-range detainment of subjectsWRAP TECH INC·Filed 2021·Granted Mar 29, 2022·6 cites·12 claims
- 0298US9667173B1Electrostatic parametric transducer and related methodsTURTLE BEACH CORP·Filed 2016·Granted May 30, 2017·44 cites·40 claims
- 0398US5859915ALighted enhanced bullhornAMERICAN TECH CORP·Filed 1997·Granted Jan 12, 1999·173 cites·31 claims
- 0498US5363444AUnidirectional ear microphone and methodJABRA CORP·Filed 1994·Granted Nov 8, 1994·284 cites·24 claims
- 0596US10107599B2Entangling projectiles and systems for their useWRAP TECH INC·Filed 2017·Granted Oct 23, 2018·32 cites·22 claims
- 0696US6460802B1Helicopter propulsion and control systemAIRSCOOTER CORP·Filed 2000·Granted Oct 8, 2002·88 cites·38 claims
- 0796US5280524ABone conductive ear microphone and methodJABRA CORP·Filed 1992·Granted Jan 18, 1994·318 cites·38 claims
- 0895US10890419B2Systems and methods for non-lethal, near-range detainment of subjectsWRAP TECH INC·Filed 2019·Granted Jan 12, 2021·10 cites·28 claims
- 0995US9363597B1Distance-based audio processing for parametric speaker systemTURTLE BEACH CORP·Filed 2014·Granted Jun 7, 2016·29 cites·20 claims
- 1095US4090178ACombination smoke detector and lamp structureNORRIS ELWOOD G·Filed 1976·Granted May 16, 1978·82 cites·9 claims
- 1194US11371810B2Seal-carrying entangling projectiles and systems for their useWRAP TECH INC·Filed 2020·Granted Jun 28, 2022·4 cites·30 claims
- 1294US10634461B2Entangling projectiles and systems for their useWRAP TECH INC·Filed 2018·Granted Apr 28, 2020·17 cites·7 claims
- 1394US8391514B2Parametric transducer systems and related methodsNORRIS ELWOOD G·Filed 2011·Granted Mar 5, 2013·16 cites·20 claims
- 1493US8976997B1Transparent parametric emitterTURTLE BEACH CORP·Filed 2014·Granted Mar 10, 2015·22 cites·29 claims
- 1593US8718297B1Parametric transducer and related methodsPARAMETRIC SOUND CORP·Filed 2013·Granted May 6, 2014·19 cites·20 claims
- 1693US6229899B1Method and device for developing a virtual speaker distant from the sound sourceAMERICAN TECH CORP·Filed 1998·Granted May 8, 2001·146 cites·14 claims
- 1793US5889870AAcoustic heterodyne device and methodAMERICAN TECH CORP·Filed 1996·Granted Mar 30, 1999·152 cites·6 claims
- 1893US5689269AGPS relative position detection systemAMERICAN TECH CORP·Filed 1995·Granted Nov 18, 1997·233 cites·13 claims
- 1992US11353287B1Systems and methods for providing information to users of hand-held weaponryWRAP TECH INC·Filed 2020·Granted Jun 7, 2022·6 cites·12 claims
- 2092US5885129ADirectable sound and light toyAMERICAN TECH CORP·Filed 1997·Granted Mar 23, 1999·71 cites·31 claims
- 2192US5781150AGPS relative position detection systemAMERICAN TECH CORP·Filed 1995·Granted Jul 14, 1998·195 cites·13 claims
- 2292US4539708AEar radioAMERICAN TECH CORP·Filed 1983·Granted Sep 3, 1985·97 cites·15 claims
- 2391US10948269B2Perimeter security system with non-lethal detainment responseWRAP TECH INC·Filed 2019·Granted Mar 16, 2021·7 cites·16 claims
- 2491US10036615B2Entangling projectile deployment systemWRAP TECH INC·Filed 2016·Granted Jul 31, 2018·15 cites·20 claims
- 2591US5491774AHandheld record and playback device with flash memoryGEN CORP COMP·Filed 1994·Granted Feb 13, 1996·177 cites·22 claims
- 2690US10852114B2Adhesive-carrying entangling projectiles and systems for their useWRAP TECH INC·Filed 2019·Granted Dec 1, 2020·12 cites·12 claims
- 2790US8199931B1Parametric loudspeaker with improved phase characteristicsNORRIS ELWOOD G·Filed 2008·Granted Jun 12, 2012·18 cites·49 claims
- 2890US6577738B2Parametric virtual speaker and surround-sound systemAMERICAN TECH CORP·Filed 2001·Granted Jun 10, 2003·52 cites·12 claims
- 2990US5952959AGPS relative position detection systemAMERICAN TECH CORP·Filed 1998·Granted Sep 14, 1999·139 cites·13 claims
- 3089US8983098B2Substantially planate parametric emitter and associated methodsPARAMETRIC SOUND CORP·Filed 2013·Granted Mar 17, 2015·12 cites·19 claims
- 3189US7198223B2Ultralight coaxial rotor aircraftAIRSCOOTER CORP·Filed 2002·Granted Apr 3, 2007·90 cites·16 claims
- 3289US4930156ATelephone receiver transmitter deviceNORCOM ELECTRONICS CORP·Filed 1988·Granted May 29, 1990·102 cites·19 claims
- 3388US9351083B2Transparent parametric emitterTURTLE BEACH CORP·Filed 2015·Granted May 24, 2016·6 cites·13 claims
- 3488US8903104B2Video gaming system with ultrasonic speakersPARAMETRIC SOUND CORP·Filed 2013·Granted Dec 2, 2014·11 cites·24 claims
- 3587US10551152B2Entangling projectiles and systems for their useWRAP TECH INC·Filed 2018·Granted Feb 4, 2020·9 cites·18 claims
- 3687US9769573B2Transparent parametric transducer and related methodsTURTLE BEACH CORP·Filed 2016·Granted Sep 19, 2017·6 cites·24 claims
- 3787US6044160AResonant tuned, ultrasonic electrostatic emitterAMERICAN TECH CORP·Filed 1998·Granted Mar 28, 2000·60 cites·21 claims
- 3886US9432785B2Error correction for ultrasonic audio systemsTURTLE BEACH CORP·Filed 2014·Granted Aug 30, 2016·8 cites·29 claims
- 3986US8929575B2Hearing enhancement systems and methodsPARAMETRIC SOUND CORP·Filed 2013·Granted Jan 6, 2015·9 cites·37 claims
- 4085US9002043B2Parametric transducer and related methodsPARAMETRIC SOUND CORP·Filed 2013·Granted Apr 7, 2015·6 cites·12 claims
- 4185US8988911B2Self-bias emitter circuitPARAMETRIC SOUND CORP·Filed 2013·Granted Mar 24, 2015·7 cites·18 claims
- 4285US6369763B1Reconfigurable plasma antennaASI TECHNOLOGY CORP·Filed 2000·Granted Apr 9, 2002·53 cites·38 claims
- 4385US4215377AMulti-speed tape cassette systemNORRIS ELWOOD G·Filed 1978·Granted Jul 29, 1980·24 cites·10 claims
- 4484US9661423B2Transparent parametric emitterTURTLE BEACH CORP·Filed 2016·Granted May 23, 2017·4 cites·22 claims
- 4584US6512496B2Expandible antennaASI TECHNOLOGY CORP·Filed 2001·Granted Jan 28, 2003·48 cites·54 claims
- 4684US5373555AUnidirectional ear microphone and gasketJABRA CORP·Filed 1993·Granted Dec 13, 1994·94 cites·25 claims
- 4783US6393129B1Paper structures for speaker transducersAMERICAN TECH CORP·Filed 1999·Granted May 21, 2002·85 cites·40 claims
- 4882US10345082B2Entangling projectile deployment systemWRAP TECH INC·Filed 2018·Granted Jul 9, 2019·3 cites·19 claims
- 4982US9258651B2Transparent parametric transducer and related methodsPARAMETRIC SOUND CORP·Filed 2013·Granted Feb 9, 2016·6 cites·26 claims
- 5081US10502526B2Systems and methods for generating targeting beamsWRAP TECH INC·Filed 2018·Granted Dec 10, 2019·6 cites·5 claims
Showing the top 50 of 135 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Elwood G. Norris 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 →