Inventor

Earl Claude Helder

Inventor
Cincinnati, OH, US

Overview

13→
Patents
2005–2011
Patent span
Performing operations
Primary field (CPC B)

Patents· 13 as inventor

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

B23Kprimary
B23KSoldering or unsoldering37%
Y10TTechnical subjects covered by former us classification17%
B29CShaping or joining of plastics7%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts7%
B29LIndexing scheme associated with subclass b29c, relating to particular articles7%
F01DNon-positive displacement machines or engines, e.g. steam turbines7%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants7%
C21DModifying the physical structure of ferrous metals3%
C23CCoating metallic material3%
F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2011Patents assigned to GEN ELECTRIC (12)· patent assignee history
2005–2011Based in Cincinnati, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GEN ELECTRIC122005–2011
Locations
LocationPatentsSpan
Cincinnati, OH, US132005–2011