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For the Inventor, By the Inventor

Rheinfelden, Germany

Birgit Bertsch-Frank

USPTO Granted Patents = 15

Average Co-Inventor Count = 4.1

ph-index = 7

Forward Citations = 354(Granted Patents)


Location History:

  • Hanau, DE (1990 - 1995)
  • Rheinfelden, DE (1996 - 1999)
  • Grundau, DE (2000)
  • Gründau, DE (2001 - 2002)
  • Wuppertal, DE (2006 - 2008)

Company Filing History:

goldMedal12 out of 1,678 
 
Degussa Aktiengesellschaft
 patents
silverMedal3 out of 145 
 
Degussa - Huls Ag
 patents

Years Active: 1990-2008

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15 patents (USPTO):Explore Patents
1. 7332139 - Process and device for carrying out reactions in reactor with slot-shaped reaction spaces (2008-02-19),
2. 7041267 - Granular sodium carbonate obtained by fluid-bed spray granulation and a process for its production (2006-05-09),
3. 6387346 - Process for producing hydrogen peroxide by direct synthesis (2002-05-14),
4. 6290775 - Fluidized bed reactor and a process of using the same (2001-09-18),
5. 6239095 - Process for preparation of coated peroxygen compounds (2001-05-29),
6. 6117409 - Process for producing hydrogen peroxide by direct synthesis (2000-09-12),
7. 5902682 - Coated sodium percarbonate particles, a process for their preparation (1999-05-11),
8. 5714201 - Process for reducing dissolution time in the production and/or coating (1998-02-03),
9. 5658873 - Coated sodium percarbonate particles, a process for their production and (1997-08-19),
10. 5632965 - Method for the preparation of stabilized sodium percarbonate (1997-05-27),
11. 5560896 - Method for producing granulated sodium percarbonate (1996-10-01),
12. 5395602 - Method for the production of sodium perborate hydrate granulates (1995-03-07),
13. 5250280 - Method of preparing storage-stable aqueous sodium peroxymonsulfate (1993-10-05),
14. 5094827 - High active oxygen content granulated sodium perborate product and (1992-03-10),
15. 4968500 - Continuous method for preparation of granulated sodium perborate (1990-11-06),
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