Wieland Hovestadt

This inventor holds 29 USPTO granted patents and 5 published patent applications and 7 EPO patents, primarily in Polyurethane Technology. Top assignees: Bayer Aktiengesellschaft, Covestro Deutschland Ag, Bayer Aktigensellschaft. Active years: 1994-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Wieland Hovestadt. Retrieved from https://idiyas.com/inventor/wieland-hovestadt

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

USPTO Granted Patents = 29 (Patent Applications = 5)

% Patents Active = 75.9

EPO Patents = 7 (Patent Applications = 11)

Average Co-Inventor Count = 4.3

ph-index = 9

Forward Citations = 232(Granted Patents)

Location History:

Krefeld, DE (1994 - 2003)
Erftstadt, DE (2003)
Leichlingen, DE (2000 - 2021)

Company Filing History:

24 out of 12,268

Bayer Aktiengesellschaft

patents

3 out of 690

Covestro Deutschland Ag

patents

1 out of 1

Bayer Aktigensellschaft

Bayer Materialscience Ag

where one patent can have more than one assignee

Years Active: 1994-2026

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Areas of Expertise:

Polyurethane

Coating Compositions

Dispersions

Binders

Aqueous Systems

Hologram Integration

Laminability

Protective Layers

Polymer Layers

Recycling Processes

Two-Component Systems

Copolymers

29 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12600116 - Special polymer layers for faster laminability of multilayer structures (2026-04-14),

2. 11059930 - Protective layer for photopolymer (2021-07-13),

3. 10901368 - Method for integrating a hologram into a security document body and security document body (2021-01-26),

4. 8242229 - Polyurethanes cured with amines and their preparation (2012-08-14),

5. 7034067 - Adjustable jet disperser for producing aqueous two-component polyurethane paint emulsions (2006-04-25),

6. 7007711 - Dispersion nozzle with variable throughput (2006-03-07),

7. 6962953 - Aqueous secondary dispersions (2005-11-08),

8. 6756464 - Two-component polyurethane binders as primers (2004-06-29),

9. 6586521 - Aqueous dispersions containing a mixture of copolymers and their use in binders (2003-07-01),

10. 6562463 - One-component stoving composition and use thereof (2003-05-13),

11. 6534620 - Hydroxy-functional polyurethane carbonates, a process for their preparation and their use as binders (2003-03-18),

12. 6531535 - Aqueous copolymers, a process for their preparation and their use in coating compositions (2003-03-11),

13. 6428854 - One-component stoving composition and use thereof (2002-08-06),

14. 6399691 - Aqueous copolymers, a process for their preparation and their use in coating compositions (2002-06-04),

15. 6335381 - Aqueous coating compositions containing urethane (meth)acylates having UV-hardening isocyanate groups (2002-01-01),

Title: Innovations and Contributions of Wieland Hovestadt

Introduction

Wieland Hovestadt, based in Leichlingen, Germany, is a prominent inventor recognized for his significant contributions to the fields of security documents and protective layers. With an impressive portfolio comprising 28 patents, Hovestadt has made notable advancements in the integration of photopolymers and holograms into various applications.

Latest Patents

Hovestadt's latest patents reflect his innovative approach and technical expertise. One of his recent inventions is a protective layer for photopolymer. This invention involves a protective layer comprised of a photopolymer layer and a partially cured protective layer. It addresses the process of producing this layer construction and its applications in optical displays and security documents.

Another significant patent involves a method for integrating holograms into the body of security documents. This method includes using a holographic film with a backing substrate and photo layer, combined with additional substrate layers through a high-pressure, high-temperature laminating process. This invention enhances the security features of laminated documents, providing better protection against counterfeiting.

Career Highlights

Throughout his career, Wieland Hovestadt has worked with esteemed organizations, including Bayer Aktiengesellschaft and Covestro Deutschland AG. His experiences within these reputable companies have enabled him to cultivate his skills and implement his innovative ideas effectively.

Collaborations

Hovestadt has collaborated with notable professionals, such as Martin Melchiors and Harald Blum. These partnerships showcase his commitment to teamwork and enhanced innovation within the field.

Conclusion

Wieland Hovestadt's dedication to innovation is evident through his extensive patent portfolio and impactful contributions to the industry. His work continues to pave the way for advancements in security technologies and protective materials, signifying his role as a key inventor in modern applications.

Profile summary based on public USPTO records.