Inventor

Birgit Bertsch-Frank

Inventor

Rheinfelden, DE

Overview

1990–2008

Patent span

Chemistry

Primary field (CPC C)

Patents· 15 as inventor

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

C01Bprimary

C01BNon-metallic elements42%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry21%

C11DDetergent compositions9%

B01DSeparation3%

B01FMixing, e.g. dissolving, emulsifying or dispersing3%

B05BSpraying apparatus3%

C07CAcyclic or carbocyclic compounds3%

C07DHeterocyclic compounds3%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact3%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application3%

PatentTitleYear

7,332,139'Process and device for carrying out reactions in reactor with slot-shaped reaction spaces'2008 7,041,267'Granular sodium carbonate obtained by fluid-bed spray granulation and a process for its production'2006 6,387,346'Process for producing hydrogen peroxide by direct synthesis'2002 6,290,775'Fluidized bed reactor and a process of using the same'2001 6,239,095'Process for preparation of coated peroxygen compounds'2001 6,117,409'Process for producing hydrogen peroxide by direct synthesis'2000 5,902,682'Coated sodium percarbonate particles, a process for their preparation and their use'1999 5,714,201'Process for reducing dissolution time in the production and/or coating of sodium percarbonate'1998 5,658,873'Coated sodium percarbonate particles, a process for their production and detergent, cleaning and bleaching compositions containing them'1997 5,632,965'Method for the preparation of stabilized sodium percarbonate'1997 5,560,896'Method for producing granulated sodium percarbonate'1996 5,395,602'Method for the production of sodium perborate hydrate granulates'1995 5,250,280'Method of preparing storage-stable aqueous sodium peroxymonsulfate solutions'1993 5,094,827'High active oxygen content granulated sodium perborate product and method of making the same'1992 4,968,500'Continuous method for preparation of granulated sodium perborate'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2008Patents assigned to DEGUSSA (15)· patent assignee history

1990–1995Based in Hanau, DE· patent location history

1996–1999Based in Rheinfelden, DE· patent location history

2000–2001Based in Grundau, DE· patent location history

2002Based in Grndau, DE· patent location history

2006–2008Based in Wuppertal, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DEGUSSA	15	1990–2008

Locations

Location	Patents	Span
Rheinfelden, DE	5	1996–1999
Hanau, DE	4	1990–1995
Grundau, DE	3	2000–2001
Wuppertal, DE	2	2006–2008
Grndau, DE	1	2002