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Inventor

William J. Caldwell

Inventor
Oregon, OH, US

Overview

2→
Patents
1978–2005
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 2 as inventor

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

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes17%
C12NMicroorganisms or enzymes17%
E05BLocks17%
E05CBolts or fastening devices for wings, specially for doors or windows17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
6,923,028'Locking system for a door'20054,072,565'Production of viruses in tissue culture without use of serum'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to DOW CHEMICAL CO (1)· patent assignee history
1978Based in Indianapolis, IN, US· patent location history
2005Based in Oregon, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DOW CHEMICAL CO11978
Locations
LocationPatentsSpan
Oregon, OH, US12005
Indianapolis, IN, US11978