Inventor

Donald Joseph Butts

Inventor
Westport, CT, US

Overview

9→
Patents
2015–2020
Patent span
Physics
Primary field (CPC G)

Patents· 9 as inventor

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

G06Fprimary
G06FElectric digital data processing15%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers12%
G10KSound-producing devices9%
G10LSpeech analysis techniques or speech synthesis9%
A61BDiagnosis6%
G06TImage data processing or generation, in general6%
H04LTransmission of digital information, e.g. telegraphic communication6%
A61NElectrotherapy3%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles3%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015Patents assigned to BUTTS DONALD J (1)· patent assignee history
2015Patents assigned to DROST STUART K (1)· patent assignee history
2015Patents assigned to MILLOTT THOMAS A (1)· patent assignee history
2015Patents assigned to SIKORSKY AIRCRAFT CORP (1)· patent assignee history
2015–2017Based in Milford, CT, US· patent location history
2016–2020Patents assigned to HARMAN INT IND (8)· patent assignee history
2017–2020Based in Westport, CT, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HARMAN INT IND82016–2020
BUTTS DONALD Jself12015
DROST STUART K12015
MILLOTT THOMAS A12015
SIKORSKY AIRCRAFT CORP12015
Locations
LocationPatentsSpan
Westport, CT, US62017–2020
Milford, CT, US32015–2017