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Inventor

Theodore C. Powers

Inventor
Winnebago, IL, US

Overview

4→
Patents
1989–2010
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 as inventor

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

H02Kprimary
H02KDynamo-electric machines20%
B08BCleaning in general10%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for10%
B61DBody details or kinds of railway vehicles10%
B63BShips or other waterborne vessels10%
B64DEquipment for fitting in or to aircraft10%
E03FSewers10%
F04DNon-positive-displacement pumps10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
7,642,683'Self-regulating permanent magnet device'20106,317,963'One piece, extruded housing for a dynamoelectric machine'20015,524,655'Precharge mechanism for vacuum toilet system'19964,844,691'Centrifugal liquid pump with cavitation surge suppression'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to SUNDSTRAND CORP (1)· patent assignee history
1989Based in Rockford, IL, US· patent location history
1996Patents assigned to ENVIROVAC INC (1)· patent assignee history
1996–2001Based in Winnebago, IL, US· patent location history
2001–2010Patents assigned to HAMILTON SUNDSTRAND CORP (2)· patent assignee history
2010Based in Sycamore, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HAMILTON SUNDSTRAND CORP22001–2010
ENVIROVAC INC11996
SUNDSTRAND CORP11989
Locations
LocationPatentsSpan
Winnebago, Illinois, US21996–2001
Sycamore, Illinois, US12010
Rockford, Illinois, US11989