Inventor

Thomas P. Stephens

Inventor

Boxford, MA, US

Overview

1979–2021

Patent span

Human necessities

Primary field (CPC A)

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

A61Bprimary

A61BDiagnosis20%

A61MDevices for introducing media into, or onto, the body16%

G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure12%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

A44BButtons, pins, buckles, slide fasteners, or the like4%

A45BWalking sticks4%

A61HPhysical therapy apparatus, e.g. devices for locating or stimulating reflex points in the body4%

D04BKnitting4%

F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges4%

F16LPipes4%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1979–1980Patents assigned to PORTEX INC (2)· patent assignee history

1979–1995Based in Boxford, MA, US· patent location history

1983–1999Patents assigned to HEWLETT PACKARD CO (10)· patent assignee history

1994Patents assigned to STEPHENS THOMAS P (1)· patent assignee history

1994Based in Priest River, ID, US· patent location history

1999Based in Alton, NH, US· patent location history

2021Patents assigned to METHNER JOHN P (1)· patent assignee history

2021Based in Euless, TX, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations