LexDanaLexDanabeta
Inventor

Erik Wiederholtz

Inventor
St. Charles, IL, US

Overview

5→
Patents
2019–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers83%
G10LSpeech analysis techniques or speech synthesis17%
PatentTitleYear
11,102,576Audio device with audio signal processing based on acoustic valve state202111,082,778Driver with acoustic filter chamber202110,939,217Audio device with acoustic valve202110,687,153Hearing device with contextually actuated valve202010,516,935Hybrid transducer2019

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2019–2021Patents assigned to KNOWLES ELECTRONICS LLC (5)· patent assignee history
2019–2021Based in St. Charles, IL, US· patent location history
2021Patents assigned to KNOWLES ELECTRONICIS LLC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KNOWLES ELECTRONICS LLC52019–2021
KNOWLES ELECTRONICIS LLC12021
Locations
LocationPatentsSpan
St. Charles, Illinois, US52019–2021