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Inventor

John F. Sierakowski

Inventor
Middlebury, CT, US

Overview

2→
Patents
1976–1990
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C08Kprimary
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients33%
C10MLubricating compositions33%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions33%
PatentTitleYear
4,914,137'Method for stabilizing polyurethane foam using an additive combination of a phenothiazine and at least one co-stabilizer'19903,988,249'Extreme pressure additive for lubricants'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to UNIROYAL INC (1)· patent assignee history
1976Based in Watertown, CT, US· patent location history
1990Patents assigned to UNIROYAL CHEM CO INC (1)· patent assignee history
1990Based in Middlebury, CT, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNIROYAL CHEM CO INC11990
UNIROYAL INC11976
Locations
LocationPatentsSpan
Middlebury, CT, US11990
Watertown, CT, US11976