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Inventor

Annette Schwan

Inventor
Darmstadt, DE

Overview

2→
Patents
1990–1995
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

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

A45Dprimary
A45DHairdressing or shaving equipment33%
A61KPreparations for medical, dental or toiletry purposes33%
A61QSpecific use of cosmetics or similar toiletry preparations33%
PatentTitleYear
5,424,062'Method for permanently shaping hair'19954,974,447'Method and apparatus for the shaping treatment of hair wound onto rollers, including human hair'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1995Patents assigned to WELLA AG (2)· patent assignee history
1990–1995Based in Darmstadt, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WELLA AG21990–1995
Locations
LocationPatentsSpan
Darmstadt, DE21990–1995