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Inventor

Roger A. Chang

Inventor
Irving, TX, US

Overview

3→
Patents
1995–2010
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G06Fprimary
G06FElectric digital data processing60%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
7,844,892'Method and system for display of business intelligence data'20105,727,174'Graphical end-user interface for intelligent assistants'19985,428,729'System and method for computer aided software engineering'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2010Patents assigned to IBM (3)· patent assignee history
1995–1998Based in Irving, TX, US· patent location history
2010Based in Ottawa, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IBM31995–2010
Locations
LocationPatentsSpan
Irving, Texas, US21995–1998
Ottawa, CA12010