LexDanaLexDanabeta
Inventor

Harry G. Willis

Inventor
Coal City, IL, US

Overview

4→
Patents
1977–1996
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 4 as inventor

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

F16Jprimary
F16JPistons43%
F02FCylinders, pistons or casings, for combustion engines29%
H01RElectrically-conductive connections14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
5,505,466'Cylinder head gasket with retaining ring and spring seal'19965,454,574'Composite powdered metal combustion seal ring'19955,338,046'Composite powdered metal retaining ring'19944,050,759'Zero-insertion-withdrawal force connector'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to MOTOROLA INC (1)· patent assignee history
1977Based in Plainfield, IL, US· patent location history
1994–1996Patents assigned to DANA CORP (3)· patent assignee history
1994–1996Based in Coal City, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DANA CORP31994–1996
MOTOROLA INC11977
Locations
LocationPatentsSpan
Coal City, Illinois, US31994–1996
Plainfield, Illinois, US11977