Hans-Rainer Zerfass

This inventor holds 8 USPTO granted patents. Top assignees: Goetze Ag, Frenzelit Asbestwerke Gmbh & Co. Kg. Active years: 1986-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hans-Rainer Zerfass. Retrieved from https://idiyas.com/inventor/hans-rainer-zerfass-u0czfu7v

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 6

Forward Citations = 98(Granted Patents)

Location History:

Burscheid, DE (1986 - 1991)
Taunusstein-Neuhof, DE (1994)

Company Filing History:

Frenzelit Asbestwerke Gmbh & Co. Kg

patent

where one patent can have more than one assignee

Years Active: 1986-1994

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5306553 - Impregnated flat gasket and method of producing the gasket (1994-04-26),

2. 5001007 - Soft material gasket and method of manufacture (1991-03-19),

3. 4781389 - Flat sealing gasket having graphite-filled armor (1988-11-01),

4. 4748075 - Flat sealing material made of a soft substance, particularly for the (1988-05-31),

5. 4741965 - Impregnated soft substance gasket (1988-05-03),

6. 4681800 - Impregnated, soft, flat gasket and manufacturing method (1987-07-21),

7. 4635948 - Release coating for gaskets and manufacturing method (1987-01-13),

8. 4600201 - Impregnated flat sealing gasket and method of making the same (1986-07-15),

Title: The Innovations of Hans-Rainer Zerfass

Introduction

Hans-Rainer Zerfass is a notable inventor based in Burscheid, Germany. He has made significant contributions to the field of gasket technology, holding a total of eight patents. His work focuses on developing innovative materials and methods for producing high-performance gaskets used in internal combustion engines.

Latest Patents

Among his latest patents is the "Impregnated Flat Gasket and Method of Producing the Gasket." This invention features a fiber mat that includes a blend of synthetic organic fibers and inorganic fillers, designed to enhance the performance of cylinder head gaskets. Another significant patent is the "Soft Material Gasket and Method of Manufacture," which involves a porous soft material combined with a crosslinked impregnating agent. This innovative approach ensures that the finished gaskets do not stick to packaging materials or cling to sealing faces after installation.

Career Highlights

Throughout his career, Hans-Rainer Zerfass has worked with prominent companies such as Goetze AG and Frenzelit Asbestwerke GmbH & Co. KG. His experience in these organizations has allowed him to refine his expertise in gasket technology and contribute to advancements in the automotive industry.

Collaborations

He has collaborated with notable colleagues, including Franz-Josef Giesen and Klaus-Peter Majewski. Their combined efforts have furthered the development of innovative gasket solutions.

Conclusion

Hans-Rainer Zerfass is a distinguished inventor whose work in gasket technology has led to significant advancements in the automotive sector. His patents reflect a commitment to innovation and quality in engineering.

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]