Inventor

Richard E. Thatcher

Inventor
Chester, VA, US

Overview

10→
Patents
1976–1991
Patent span
Human necessities
Primary field (CPC A)

Patents· 10 as inventor

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

A24Cprimary
A24CMachines for making cigars or cigarettes20%
B07BSeparating solids from solids by sieving, screening, sifting or by using gas currents20%
A24BManufacture or preparation of tobacco for smoking or chewing15%
A24DCigars5%
A47KSanitary equipment5%
A61BDiagnosis5%
B03BSeparating solid materials using liquids or using pneumatic tables or jigs5%
B09BDisposal of solid waste not otherwise provided for5%
B26FPerforating5%
B41FPrinting machines or presses5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1991Patents assigned to PHILIP MORRIS INC (8)· patent assignee history
1976Patents assigned to THATCHER RICHARD EUGENE (1)· patent assignee history
1976–1991Based in Chester, VA, US· patent location history
1976–1981Based in Chesterfield, VA, US· patent location history
1985Patents assigned to THATCHER RICHARD E (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PHILIP MORRIS INC81976–1991
THATCHER RICHARD Eself11985
THATCHER RICHARD EUGENEself11976
Locations
LocationPatentsSpan
Chester, Virginia, US71976–1991
Chesterfield, Virginia, US31976–1981