Inventor

Harold T. Allen

Inventor
Indianapolis, IN, US

Overview

11→
Patents
1983–2005
Patent span
Performing operations
Primary field (CPC B)

Patents· 11 as inventor

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

B05Bprimary
B05BSpraying apparatus41%
B08BCleaning in general19%
F16KValves15%
Y10TTechnical subjects covered by former us classification15%
B05CApparatus for applying fluent materials to surfaces, in general4%
B25GHandles for hand implements4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1999Patents assigned to RANSBURG CORP (6)· patent assignee history
1983–1984Based in Brownsburg, IN, US· patent location history
1997–2005Based in Indianapolis, IN, US· patent location history
1998–2005Patents assigned to ILLINOIS TOOL WORKS (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RANSBURG CORP61983–1999
ILLINOIS TOOL WORKS51998–2005
Locations
LocationPatentsSpan
Indianapolis, IN, US91997–2005
Brownsburg, IN, US21983–1984