Inventor

Robert E. Johnson

Inventor

Castlewood, SD, US

Overview

1984–2021

Patent span

Human necessities

Primary field (CPC A)

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

A22Cprimary

A22CProcessing meat, poultry, or fish8%

A45FTravelling or camp equipment: sacks or packs carried on the body8%

A47GHousehold or table equipment8%

A63FCard, board, or roulette games8%

B44DPainting or artistic drawing, not otherwise provided for8%

F21LLighting devices or systems thereof, being portable or specially adapted for transportation8%

F21VFunctional features or details of lighting devices or systems thereof8%

G01NInvestigating or analysing materials by determining their chemical or physical properties8%

G02BOptical elements, systems or apparatus8%

G06FElectric digital data processing8%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to ITT (1)· patent assignee history

1986–1987Patents assigned to JOHNSON ROBERT E (4)· patent assignee history

1986–1997Based in Castlewood, SD, US· patent location history

1986–2000Based in Dearborn Heights, MI, US· patent location history

1997Patents assigned to CASTLE WOODWORKS INC (1)· patent assignee history

1998Patents assigned to FOXBORO CO (1)· patent assignee history

1998–1999Based in Pembroke, MA, US· patent location history

2012Patents assigned to JOHNSON JR ROBERT E (1)· patent assignee history

2012Based in St. George, UT, US· patent location history

2021Based in Pottstown, PA, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations