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6969 Hardheim, Germany

Walter Eirich

This inventor holds 11 USPTO granted patents. Top assignees: Maschinenfabrik Gustav Eirich, Other. Active years: 1980-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Walter Eirich. Retrieved from https://idiyas.com/inventor/walter-eirich

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

USPTO Granted Patents = 11

% Patents Active = 90.9

Average Co-Inventor Count = 3.4

ph-index = 8

Forward Citations = 133(Granted Patents)


Location History:

  • 6969 Hardheim, DE (1980 - 1991)
  • Hardheim, DE (1985 - 2005)

Company Filing History:

goldMedal1 out of 9 
 
Maschinenfabrik Gustav Eirich
 patents
silverMedal10 out of 834,570 
Other
 patents

Years Active: 1980-2005

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11 patents (USPTO):Explore Patents
1. 6926063 - Method for conditioning foundry moulding sand and a device therefor (2005-08-09),
2. 4997357 - Apparatus for treatment of power station residues (1991-03-05),
3. 4854715 - Pressure-resistant mixer (1989-08-08),
4. 4758372 - Method of producing lead paste for batteries (1988-07-19),
5. 4744829 - Process for producing agglomerates which are resistant to leaching out (1988-05-17),
6. 4681267 - Method of regenerating old casting sand (1987-07-21),
7. 4624003 - Apparatus for heating electrically conductive bulk materials (1986-11-18),
8. 4569025 - Method of preparing foundrys and by measuring moisture and (1986-02-04),
9. 4562970 - Apparatus for opening and closing the outlet aperture of a processing (1986-01-07),
10. 4560283 - Apparatus for closing and continuously emptying the container of a (1985-12-24),
11. 4186592 - Method of measuring the moisture content in flowable materials and (1980-02-05),

Title: Walter Eirich: Innovator in Foundry and Power Station Technologies

Introduction

Walter Eirich is a notable inventor based in Hardheim, Germany. He holds a total of 11 patents that showcase his contributions to the fields of foundry technology and power station residue treatment. His innovative methods and devices have significantly impacted industrial processes.

Latest Patents

One of Eirich's latest patents is a method for conditioning foundry moulding sand. This method involves heating cooled used moulding sand to a minimum temperature, moisturizing it with water or water vapor, and then cooling it using a vacuum effect. The invention also includes an apparatus designed for this method, featuring a mixing container, a rotatable mixing agitator, and various components for feeding and removing materials. Another significant patent addresses the treatment of power station residues, particularly filter ash. This method hydrates the lime content of the bulk material and allows for continuous processing and discharging of treated material through a series of treatment zones.

Career Highlights

Throughout his career, Walter Eirich has worked with various companies, including Maschinenfabrik Gustav Eirich. His work has focused on developing efficient and cost-effective solutions for industrial challenges, particularly in the treatment of materials.

Collaborations

Eirich has collaborated with notable individuals such as Hubert Eirich and Paul Eirich. Their combined expertise has contributed to the advancement of technologies in their respective fields.

Conclusion

Walter Eirich's innovative patents and career achievements highlight his significant contributions to industrial technology. His work continues to influence the efficiency and effectiveness of processes in foundries and power stations.

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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