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Inventor

David R. Lakness

Inventor
Chelmsford, MA, US

Overview

3→
Patents
1987–1993
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%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests40%
PatentTitleYear
5,231,578'Apparatus for document annotation and manipulation using images from a window source'19934,897,780'Document manager system for allocating storage locations and generating corresponding control blocks for active documents in response to requests from active tasks'19904,713,754'Data structure for a document processing system'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1993Patents assigned to WANG LABORATORIES (3)· patent assignee history
1987–1990Based in Chelmsford, MA, US· patent location history
1993Based in Westford, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WANG LABORATORIES31987–1993
Locations
LocationPatentsSpan
Chelmsford, Massachusetts, US21987–1990
Westford, Massachusetts, US11993