Membership
Tour
Register
Log in
Klaus D. Schomann
Follow
Person
Frankfurt, DE
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Carbonyloxy-substituted azulenesquaric acid dyes, intermediates the...
Patent number
5,728,867
Issue date
Mar 17, 1998
BASF Aktiengesellschaft
Michael Schmitt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Magnetic recording medium
Patent number
5,462,810
Issue date
Oct 31, 1995
BASF Magnetics GmbH
Harald Keller
G11 - INFORMATION STORAGE
Information
Patent Grant
Repositioning laser beams in information storage media
Patent number
5,235,573
Issue date
Aug 10, 1993
BASF Aktiengesellschaft
Klaus D. Schomann
G11 - INFORMATION STORAGE
Information
Patent Grant
Heterocyclic polymethine dyes with carbamate or amide groups
Patent number
5,221,751
Issue date
Jun 22, 1993
BASF Aktiengesellschaft
Michael Acker
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Binary azulenesquaric acid dyes, their intermediates and optical re...
Patent number
5,169,975
Issue date
Dec 8, 1992
BASF Aktiengesellschaft
Michael Schmitt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optical recording medium
Patent number
5,124,240
Issue date
Jun 23, 1992
Sibylle Brosius
G11 - INFORMATION STORAGE
Information
Patent Grant
Amido-containing azulene squaric acid dyes, intermediates therefor...
Patent number
5,122,435
Issue date
Jun 16, 1992
BASF Aktiengesellschaft
Michael Schmitt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Methine dyes and optical recording medium containing same
Patent number
5,093,492
Issue date
Mar 3, 1992
BASF Aktiengesellschaft
Michael Acker
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
A zulenes containing a urethane group
Patent number
5,087,727
Issue date
Feb 11, 1992
BASF Aktiengesellschaft
Wolfgang Schrott
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Azulenesquaric acid dyes, azulene intermediates therefor, and optic...
Patent number
5,084,592
Issue date
Jan 28, 1992
BASF Aktiengesellschaft
Wolfgang Schrott
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Quinoxalinepentamethine dyes and optical recording medium containin...
Patent number
5,064,702
Issue date
Nov 12, 1991
BASF Aktiengesellschaft
Michael Acker
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Naphtholactamtrimethine dyes and optical recording medium containin...
Patent number
5,002,863
Issue date
Mar 26, 1991
BASF Aktiengesellschaft
Matthias Dust
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Azulenesquaric acid dyes that contain urethane groups
Patent number
4,990,649
Issue date
Feb 5, 1991
BASF Aktiengesellschaft
Wolfgang Schrott
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optical recording medium
Patent number
4,966,798
Issue date
Oct 30, 1990
BASF Aktiengesellschaft
Sibylle Brosius
G11 - INFORMATION STORAGE
Information
Patent Grant
Naphtholactam dyes and optical recording medium containing these dyes
Patent number
4,939,012
Issue date
Jul 3, 1990
BASF Aktiengesellschaft
Matthias Dust
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Naphtholactam dyes and optical recording medium containing these days
Patent number
4,876,356
Issue date
Oct 24, 1989
BASF Aktiengesellschaft
Matthias Dust
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Naphtholactamsquaric acid dyes and optical recording materials cont...
Patent number
4,830,951
Issue date
May 16, 1989
BASF Aktiengesellschaft
Matthias Dust
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Novel tetraphenyldithiolene complexes, asymmetrically substituted b...
Patent number
4,806,664
Issue date
Feb 21, 1989
BASF Aktiengesellschaft
Wolfgang Schrott
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Tape guide system for magnetic tapes, especially video tapes
Patent number
4,751,601
Issue date
Jun 14, 1988
BASF Aktiengesellschaft
Roland Roos
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape cassette with equalization of electrostatic charges
Patent number
4,712,148
Issue date
Dec 8, 1987
BASF Aktiengesellschaft
Werner Balz
G11 - INFORMATION STORAGE
Information
Patent Grant
Irreversible optical medium for information storage, and its produc...
Patent number
4,670,332
Issue date
Jun 2, 1987
BASF Aktiengesellschaft
Arend Werner
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Guide system and magnetic tape cassette comprising such a system
Patent number
4,625,252
Issue date
Nov 25, 1986
BASF Aktiengesellschaft
Werner Balz
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic devices for changing video recordings
Patent number
4,348,698
Issue date
Sep 7, 1982
BASF Aktiengesellschaft
Klaus D. Schomann
G11 - INFORMATION STORAGE
Information
Patent Grant
DC erase head
Patent number
4,187,521
Issue date
Feb 5, 1980
BASF Aktiengesellschaft
Gerhard Rotter
G11 - INFORMATION STORAGE