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Cologne, Germany

Paul Uhrhan

USPTO Granted Patents = 15

Average Co-Inventor Count = 4.5

ph-index = 6

Forward Citations = 155(Granted Patents)


Location History:

  • Cologne, DE (1977 - 1981)
  • Odenthal, DE (1983)
  • Leverkusen, DE (1993)

Company Filing History:

goldMedal15 out of 12,157 
 
Bayer Aktiengesellschaft
 patents

Years Active: 1977-1993

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15 patents (USPTO):Explore Patents
1. 5248812 - Process for the isolation of 2-naphthylamine-1,5-disulphonic acid (1993-09-28),
2. 4420613 - Dihydrobenzothiazine compounds and the preparation thereof (1983-12-13),
3. 4393206 - Process for the production of 2,3-Dihydro-4H-1,4-benzothiazines (1983-07-12),
4. 4254229 - Polyurethane plastics containing thio groups (1981-03-03),
5. 4223147 - Methylol derivatives of 2,2,6,6-tetraalkylpiperidines and their (1980-09-16),
6. 4178279 - Permanently stabilized polyurethanes (1979-12-11),
7. 4153596 - Permanently stabilized polymers produced by after-treatment with (1979-05-08),
8. 4146688 - Process for making polyurethane resins via thio-group containing diamines (1979-03-27),
9. 4145512 - Permanently stabilized polyurethanes (1979-03-20),
10. 4101506 - Cyanamide stabilizers (1978-07-18),
11. 4089841 - Thiazolinylamino-piperidine derivatives (1978-05-16),
12. 4088758 - O-(1-Phenyl-2-carbalkoxy-vinyl)-thionophosphoric (phosphonic) acid (1978-05-09),
13. 4088629 - Stabilization of synthetic polymers (1978-05-09),
14. 4080399 - Sulphenamides, their production and their use as vulcanization retarders (1978-03-21),
15. 4032634 - O,O-Dialkyl-O-(1-phenyl-2-carbalkoxyvinyl)-thionophosphoric acid esters (1977-06-28),

Title: The Innovative Contributions of Paul Uhrhan

Introduction

Paul Uhrhan is a notable inventor based in Cologne, Germany, recognized for his significant contributions to the field of chemistry. With a total of 15 patents to his name, Uhrhan has made remarkable advancements in the development of chemical processes and compounds.

Latest Patents

Among his latest patents is a process for the isolation of 2-naphthylamine-1,5-disulphonic acid. This innovative method allows for the precipitation of the compound from as-sulphonated reaction mixtures by dilution, resulting in a purer product with minimal adherent sulphuric acid. Uhrhan has also developed new dihydrobenzothiazine compounds, which are utilized as stabilizers and co-stabilizers against oxidative and thermal degradation of organic polymers. These inventions showcase his expertise in creating efficient chemical processes.

Career Highlights

Uhrhan's career is marked by his work at Bayer Aktiengesellschaft, a leading global company in the pharmaceutical and life sciences sector. His role at Bayer has allowed him to apply his innovative ideas and contribute to the company's research and development efforts.

Collaborations

Throughout his career, Uhrhan has collaborated with esteemed colleagues such as Ernst Roos and Harald Oertel. These partnerships have fostered a collaborative environment that enhances the innovation process and leads to the successful development of new technologies.

Conclusion

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