Inventor

David William Sale

Inventor
Heber Springs, AR, US

Overview

8→
Patents
1998–2004
Patent span
Human necessities
Primary field (CPC A)

Patents· 8 as inventor

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

A61Cprimary
A61CDentistry33%
A46BBrushes17%
LOC0417%
A46DManufacture of brushes8%
B01DSeparation8%
C02FTreatment of water, waste water, sewage, or sludge8%
LOC248%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2000Patents assigned to PROFESSIONAL DENTAL TECH INC (2)· patent assignee history
1998–2004Based in Heber Springs, AR, US· patent location history
1999–2003Patents assigned to PROFESSIONAL DENTAL TECH (5)· patent assignee history
2004Patents assigned to PROFESSIONAL DENTAL MFG (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PROFESSIONAL DENTAL TECH51999–2003
PROFESSIONAL DENTAL TECH INC21998–2000
PROFESSIONAL DENTAL MFG12004
Locations
LocationPatentsSpan
Heber Springs, AR, US81998–2004