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Inventor

Hermann David Hartman

Inventor
Tottenham, CA

Overview

3→
Patents
1986–2003
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

B29Cprimary
B29CShaping or joining of plastics22%
A47CChairs11%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry11%
B26DCutting11%
B26FPerforating11%
B63BShips or other waterborne vessels11%
C08JWorking-up11%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
6,576,174'Residual gas extraction process'20035,897,409'Floatable lounger with rotating headrest'19994,621,956'Method and apparatus for cutting of flexible foam material'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986Patents assigned to HARTMAN H DAVID (1)· patent assignee history
1986Patents assigned to HARTMAN STEVEN D (1)· patent assignee history
1986Based in Mississauga, CA· patent location history
1999–2003Patents assigned to IND THERMO POLYMERS LTD (2)· patent assignee history
1999–2003Based in Tottenham, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IND THERMO POLYMERS LTD21999–2003
HARTMAN H DAVIDself11986
HARTMAN STEVEN D11986
Locations
LocationPatentsSpan
Tottenham, CA21999–2003
Mississauga, CA11986