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For the Inventor, By the Inventor

Ebringen, Germany

Michael Kirchgessner

This inventor holds 11 USPTO granted patents, plus 3 CIPO patents. Top assignee: Crown Cork Ag. Active years: 1991-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Michael Kirchgessner. Retrieved from https://idiyas.com/inventor/michael-kirchgessner

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

Calculating rank
USPTO Granted Patents = 11

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.2

ph-index = 7

Forward Citations = 231(Granted Patents)


Location History:

  • Binzen, DE (1991 - 1993)
  • Egringen, DE (1998 - 2000)

Company Filing History:

goldMedal11 out of 15 
 
Crown Cork Ag
 patents

Years Active: 1991-2000

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11 patents (USPTO):Explore Patents
1. 6116451 - Screw cap with anti-tamper strip (2000-09-12),
2. 6116444 - Plastic closure cap (2000-09-12),
3. 5893474 - Screw cap with anti-tamper strip (1999-04-13),
4. 5871111 - Screwable closure cap with security against over-tightening (1999-02-16),
5. 5848717 - Snap-on seal arrangement on a container (1998-12-15),
6. 5803286 - Plastic closure cap with early venting inner seal (1998-09-08),
7. 5775527 - Closure cap with anti-tamper strip (1998-07-07),
8. 5725115 - Closure cap with tether (1998-03-10),
9. 5715959 - Closure cap with anti-tamper ring (1998-02-10),
10. 5248050 - Cap having expandable guarantee strip (1993-09-28),
11. 5074425 - Plastic closure cap (1991-12-24),

Title: Michael Kirchgessner: Innovator in Plastic Closure Technology

Introduction

Michael Kirchgessner is a notable inventor based in Egringen, Germany. He has made significant contributions to the field of plastic closure technology, holding a total of 11 patents. His innovative designs have improved the functionality and security of packaging solutions.

Latest Patents

One of Kirchgessner's latest patents is a plastic closure cap featuring a screw cap with an anti-tamper strip. This design includes a plastic anti-tamper strip located at the lower edge of the screw cap. The strip is designed with bridges that form a horizontal nominal rupture line, allowing it to be separated from the screw cap when the container is opened for the first time. Additionally, the screw cap features a bead that interlocks with a corresponding bead on the container mouth. The anti-tamper strip also includes a vertical nominal rupture point, with a relief zone that increases stretchability towards the lower edge.

Career Highlights

Kirchgessner works for Crown Cork AG, a company known for its innovative packaging solutions. His work has been instrumental in advancing the design and security of closure systems, making them more user-friendly and tamper-evident.

Collaborations

Throughout his career, Kirchgessner has collaborated with talented individuals such as Udo Bosl and Georg Pfefferkorn. These partnerships have fostered a creative environment that encourages innovation and the development of new ideas.

Conclusion

Michael Kirchgessner is a prominent figure in the field of plastic closure technology, with a strong portfolio of patents that reflect his innovative spirit. His contributions continue to shape the industry and enhance product security.

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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