LexDanaLexDanabeta
Inventor

David M. Stentz

Inventor
Cincinnati, OH, US

Overview

3→
Patents
1990–2008
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

A45Dprimary
A45DHairdressing or shaving equipment29%
A61KPreparations for medical, dental or toiletry purposes29%
A61QSpecific use of cosmetics or similar toiletry preparations29%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
7,380,556'Hair iron'20087,178,531'Device for achieving smooth and straight hair'20074,902,499'Hair care compositions containing a rigid silicone polymer'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2008Patents assigned to PROCTER & GAMBLE (3)· patent assignee history
1990–2008Based in Cincinnati, OH, US· patent location history
2008Patents assigned to MATSUSHITA ELECTRIC WORKS LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PROCTER & GAMBLE31990–2008
MATSUSHITA ELECTRIC WORKS LTD12008
Locations
LocationPatentsSpan
Cincinnati, OH, US31990–2008