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Inventor

Norman Schapiro

Inventor
Sudbury, MA, US

Overview

3→
Patents
1976–1986
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C10Bprimary
C10BDestructive distillation of carbonaceous materials for production of gas, coke, tar, or similar materials25%
C10LFuels not otherwise provided for25%
C22BProduction and refining of metals25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
PatentTitleYear
4,618,346'Deashing process for coal'19864,039,319'Method of calcining green coke agglomerates'19773,942,974'Manganese nodule pelletizing'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to KENNECOTT COPPER CORP (1)· patent assignee history
1976–1986Based in Sudbury, MA, US· patent location history
1977Patents assigned to UNITED STATES STEEL CORP (1)· patent assignee history
1986Patents assigned to RESOURCE ENGINEERING INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KENNECOTT COPPER CORP11976
RESOURCE ENGINEERING INC11986
UNITED STATES STEEL CORP11977
Locations
LocationPatentsSpan
Sudbury, Massachusetts, US31976–1986