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Inventor

Donald D. Tzeng

Inventor
San Jose, CA, US

Overview

4→
Patents
1990–2005
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C06Bprimary
C06BExplosives or thermic compositions29%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests29%
C06DMeans for generating smoke or mist14%
C07CAcyclic or carbocyclic compounds14%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds14%
PatentTitleYear
6,905,561'Solid rocket propellant'20056,238,499'Solid rocket propellant'20015,557,062'Breathable gas generators'19964,942,164'Polyfluorinated diisocyanates and fluorinated polyurethanes prepared therefrom'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to FLUOROCHEM INC (1)· patent assignee history
1990–2005Based in San Jose, CA, US· patent location history
1996–2005Patents assigned to UNITED TECHNOLOGIES CORP (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNITED TECHNOLOGIES CORP31996–2005
FLUOROCHEM INC11990
Locations
LocationPatentsSpan
San Jose, California, US41990–2005