Inventor

Mart Kelder

Inventor
Los Altos, CA, US

Overview

6→
Patents
2014–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 6 as inventor

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

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication21%
H04MTelephonic communication21%
H04NPictorial communication, e.g. television21%
G06FElectric digital data processing14%
G11BInformation storage based on relative movement between record carrier and transducer14%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers7%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2014–2016Patents assigned to SKYPE (3)· patent assignee history
2014Patents assigned to KELDER MART (2)· patent assignee history
2014Patents assigned to HEINLA AHTI (1)· patent assignee history
2014Patents assigned to SPITTKA JULIAN (1)· patent assignee history
2014Based in Tallinn, EE· patent location history
2016–2020Patents assigned to MICROSOFT TECHNOLOGY LICENSING LLC (3)· patent assignee history
2016–2020Based in Los Altos, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MICROSOFT TECHNOLOGY LICENSING LLC32016–2020
SKYPE32014–2016
KELDER MARTself22014
HEINLA AHTI12014
SPITTKA JULIAN12014
Locations
LocationPatentsSpan
Los Altos, California, US42016–2020
Tallinn, EE22014