Inventor
Andrew A. Efanov
Inventor
Crystal Lake, IL, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Qprimary
H01QAntennas, i.e. radio aerials89%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers11%
PatentTitleYear
9,800,965'Multi-microphone porting and venting structure for a communication device'20179,653,813'Diagonally-driven antenna system and method'20179,276,321'Diagonally-driven antenna system and method'20167,292,195'Energy diversity antenna and system'20076,657,595'Sensor-driven adaptive counterpoise antenna system'20036,600,450'Balanced multi-band antenna system'20036,421,016'Antenna system with channeled RF currents'20026,348,897'Multi-function antenna system for radio communication device'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2007Patents assigned to MOTOROLA INC (5)· patent assignee history
2002–2017Based in Crystal Lake, IL, US· patent location history
2002Based in Harvard, IL, US· patent location history
2016–2017Patents assigned to EFANOV ANDREW A (2)· patent assignee history
2016–2017Patents assigned to Google Technology Holdings LLC (2)· patent assignee history
2016–2017Patents assigned to JUMANI KARAN J (2)· patent assignee history
2016–2017Patents assigned to KRENZ ERIC L (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MOTOROLA INC | 5 | 2002–2007 |
| EFANOV ANDREW Aself | 2 | 2016–2017 |
| Google Technology Holdings LLC | 2 | 2016–2017 |
| JUMANI KARAN J | 2 | 2016–2017 |
| KRENZ ERIC L | 2 | 2016–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Crystal Lake, Illinois, US | 7 | 2002–2017 |
| Harvard, Illinois, US | 1 | 2002 |