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For the Inventor, By the Inventor

Dueren, Germany

Hermann Rappold & Co. Gmbh

Calculating rank
USPTO Granted Patents = 7

Forward Citations = 42

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13 inventors (with patents filed for the assignee):

goldMedal Rudolf Muller (5 out of 7 patents)

silverMedal Johannes Uerlichs (2 out of 3 patents)

bronzeMedal Wolfgang Schawag (1 out of 2 patents)

4.  Josef Seeger (1 out of 4 patents)

5.  Bernd Ormanns (1 out of 1 patent)

6.  Karl-Josef Kremers (1 out of 1 patent)

7.  Hermann-Josef Stolberg (1 out of 1 patent)

8.  Hermann Josef Stolberg (1 out of 1 patent)

9.  Konrad Fink (1 out of 1 patent)

10.  Franz Lengsfeld (1 out of 1 patent)

11.  Pietro Lonardo (1 out of 1 patent)

12.  Hans Kuckertz (1 out of 1 patent)

13.  Erich Marx (1 out of 1 patent)


7 patents:

1. 5697596 - Flap valve with improved actuator (1997-12-16),
2. 4337789 - Shut-off valve for interrupting a flow of a fluid through a pipeline (1982-07-06),
3. 4313724 - Ceramic burner for use in an air heater (1982-02-02),
4. 4296776 - Gate valve for use in large size conduits (1981-10-27),
5. 4127257 - Process for operating a plurality of regenerative hot blast stoves for (1978-11-28),
6. 4018420 - Slide valve for closing a large pressurized gas conveying pipe (1977-04-19),
7. 3970109 - Shutoff and control slide (1976-07-20),
Company Overview
Hermann Rappold & Co. GmbH is a leading manufacturer in the field of industrial valves and fittings. With over 50 years of experience, the company offers high-quality products for various industries including chemical, petrochemical, and pharmaceutical. Their innovative solutions and exceptional customer service have earned them a solid reputation in the industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

7 Patents

#11 in Dueren

#4,867 in Germany

Dueren, DE
Dueren, Germany

Hermann Rappold & Co. Gmbh

Forward Citations = 42

13 inventors:

goldMedal Rudolf Muller (5 out of 7 patents)

silverMedal Johannes Uerlichs (2 out of 3 patents)

bronzeMedal Wolfgang Schawag (1 out of 2 patents)

4.  Josef Seeger (1 out of 4 patents)

5.  Bernd Ormanns (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hermann Rappold & Co. Gmbh. Retrieved from https://idiyas.com/company/hermann-rappold-andcompany

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

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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