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For the Inventor, By the Inventor

Hanover, Germany

Karl-Heinz Weissmann

This inventor holds 4 USPTO granted patents. Top assignees: Pritt Produktionsgesellschaft Mbh, Pelikan Aktiengesellschaft, Other. Active years: 1993-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Karl-Heinz Weissmann. Retrieved from https://idiyas.com/inventor/karl-heinz-weissmann

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

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 4

Forward Citations = 46(Granted Patents)


Location History:

  • Hanover, DE (1993 - 1999)
  • Hannover, DE (2002 - 2003)

Company Filing History:

goldMedal2 out of 12 
 
Pritt Produktionsgesellschaft Mbh
 patents
silverMedal1 out of 50 
 
Pelikan Aktiengesellschaft
 patents
bronzeMedal1 out of 834,570 
Other
 patents

Years Active: 1993-2003

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4 patents (USPTO):Explore Patents
1. 6576327 - Multi-layer, flexible transfer tape (2003-06-10),
2. 6432515 - Flexible, multilayered transfer tape (2002-08-13),
3. 5891562 - Multi-layer, flexible transfer tape comprising polymeric hollow (1999-04-06),
4. 5242725 - Multilayer flexible marking band or tape (1993-09-07),

Title: The Innovative Contributions of Karl-Heinz Weissmann

Introduction

Karl-Heinz Weissmann is a notable inventor based in Hannover, Germany. He has made significant contributions to the field of adhesive technologies, particularly through his innovative patents. With a total of four patents to his name, Weissmann has developed solutions that enhance the functionality and usability of transfer tapes.

Latest Patents

Weissmann's latest patents include the development of multi-layer, flexible transfer tapes. These tapes are designed to cover printing or typing errors in texts or drawings, allowing for easy corrections. The unique feature of these transfer tapes is the inclusion of two binder-containing pigmented transfer layers, one being cationic and the other anionic. Another notable patent is for a flexible, multilayered transfer tape that contains an auxiliary support and a layer of pressure-sensitive adhesive. This tape features a white-pigmented transfer layer that exhibits greater adhesion to the adhesive layer than to the auxiliary support. The innovative design includes finely dispersed non-white pigments in either the polymer-bonded interlayer or the pressure-sensitive adhesive layer, significantly improving the covering capacity compared to traditional transfer tapes.

Career Highlights

Throughout his career, Weissmann has worked with reputable companies such as Pritt Produktionsgesellschaft Mbh and Pelikan Aktiengesellschaft. His experience in these organizations has contributed to his expertise in adhesive technologies and product development.

Collaborations

Weissmann

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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