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For the Inventor, By the Inventor

Krefeld, Germany

Ingo Schwirtlich

This inventor holds 12 USPTO granted patents. Top assignee: Bayer Aktiengesellschaft. Active years: 1985-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ingo Schwirtlich. Retrieved from https://idiyas.com/inventor/ingo-schwirtlich-t21ge282

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 5

Forward Citations = 94(Granted Patents)


Company Filing History:

goldMedal12 out of 12,269 
 
Bayer Aktiengesellschaft
 patents

Years Active: 1985-1996

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12 patents (USPTO):Explore Patents
1. 5490477 - Process for the production of semiconductor foils and their use (1996-02-13),
2. 5431743 - Silicon for solar cells, a process for the preparation thereof, and the (1995-07-11),
3. 5298109 - Process for the production of metal wafers and the use of silicon wafers (1994-03-29),
4. 5013393 - Process for the melting and directional solidification of metals (1991-05-07),
5. 4919913 - Process for the production of solar silicon (1990-04-24),
6. 4900532 - Continuous process for refining silicon (1990-02-13),
7. 4877596 - Process for the production of low carbon silicon (1989-10-31),
8. 4837376 - Process for refining silicon and silicon purified thereby (1989-06-06),
9. 4790871 - Strip-shaped films of metals, a process and an apparatus for the (1988-12-13),
10. 4755220 - Materials resistant to metal and salt melts, their production and their (1988-07-05),
11. 4670096 - Process and apparatus for producing semi-conductor foils (1987-06-02),
12. 4561930 - Process for the production of coarsely crystalline silicon (1985-12-31),

Title: Ingo Schwirtlich: Innovator in Semiconductor Technology

Introduction

Ingo Schwirtlich is a prominent inventor based in Krefeld, Germany. He has made significant contributions to the field of semiconductor technology, particularly in the production of high-purity semiconductor foils. With a total of 12 patents to his name, Schwirtlich's work has had a substantial impact on the solar energy sector.

Latest Patents

Schwirtlich's latest patents include a process for the production of semiconductor foils and their use. This innovative method involves treating an impure semiconductor foil with at least one reactive gas while in the crystallizing state. Additionally, he has developed a highly efficient material for producing electrical currents from sunlight, which is particularly useful in solar cells. This silicon material has a total oxygen and carbon content ranging from 3 to 200 ppm, with an oxygen to carbon ratio of less than 2:1, as determined by infra-red analysis.

Career Highlights

Ingo Schwirtlich is currently employed at Bayer Aktiengesellschaft, where he continues to advance his research and development efforts in semiconductor technology. His work has been instrumental in enhancing the efficiency and effectiveness of solar energy applications.

Collaborations

Some of his notable coworkers include Peter Woditsch and Horst Lange, who have collaborated with him on various projects within the semiconductor field.

Conclusion

Ingo Schwirtlich's innovative contributions to semiconductor technology and solar energy applications highlight his role as a leading inventor in this vital industry. His patents and ongoing research continue to pave the way for advancements in sustainable energy solutions.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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