Inventor

David A. Keller

Inventor
Encinitas, CA, US

Overview

5→
Patents
1976–2021
Patent span
Human necessities
Primary field (CPC A)

Patents· 5 as inventor

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

LOC24primary
LOC2440%
A61BDiagnosis20%
A63HToys, e.g. tops, dolls, hoops or building blocks20%
B60JWindows, windscreens, non-fixed roofs, doors, or similar devices for vehicles20%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to MATTEL INC (1)· patent assignee history
1976Based in Hacienda Heights, CA, US· patent location history
2020Patents assigned to INALFA ROOF SYS GROUP BV (1)· patent assignee history
2020Based in Clarkston, MI, US· patent location history
2021Patents assigned to DEXCOM INC (3)· patent assignee history
2021Based in Encinitas, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DEXCOM INC32021
INALFA ROOF SYS GROUP BV12020
MATTEL INC11976
Locations
LocationPatentsSpan
Encinitas, California, US32021
Clarkston, MI, US12020
Hacienda Heights, California, US11976