Inventor

John A. Hamming

Inventor
Laguna Niguel, CA, US

Overview

21→
Patents
1999–2019
Patent span
Physics
Primary field (CPC G)

Patents· 21 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer66%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them10%
G06FElectric digital data processing10%
H04NPictorial communication, e.g. television7%
H05KPrinted circuits7%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2002Patents assigned to SEAGATE TECHNOLOGY (5)· patent assignee history
1999–2002Patents assigned to HEWLETT PACKARD CO (2)· patent assignee history
1999–2002Patents assigned to IBM (2)· patent assignee history
1999–2008Based in Laguna Niguel, CA, US· patent location history
2003Patents assigned to SEAGATE REMOVABLE STORAGE (3)· patent assignee history
2006–2009Patents assigned to CERTANCE LLC (7)· patent assignee history
2006–2019Based in San Clemente, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CERTANCE LLC72006–2009
SEAGATE TECHNOLOGY51999–2002
SEAGATE REMOVABLE STORAGE32003
HEWLETT PACKARD CO21999–2002
IBM21999–2002
Locations
LocationPatentsSpan
Laguna Niguel, California, US111999–2008
San Clemente, California, US102006–2019