Forward Citations = 73

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7 inventors (with patents filed for the assignee):

Patrick W MacKay (6 out of 12 patents)

Enrique R Martinez-Vera (1 out of 11 patents)

Juan Celada (1 out of 2 patents)

4. Enrique Martinez Vera (1 out of 3 patents)

5. Ramon De La Pena (1 out of 3 patents)

6. Juan F Price-Falcon (1 out of 7 patents)

7. Gilberto Guerra-Garcia (1 out of 3 patents)

6 patents: Sort by Forward Citations

1. 4298190 - Apparatus for gaseous reduction of metal ores with cooling loop (1981-11-03),

2. 4150972 - Controlling carburization in the reduction of iron ore to sponge iron (1979-04-24),

3. 4121922 - Method and apparatus for measuring percentage reduction in a metal ore (1978-10-24),

4. 4099963 - Method for the batchwise reduction of metal ores (1978-07-11),

5. 4067728 - Method for gaseous reduction of metal ores (1978-01-10),

6. 4046556 - Direct gaseous reduction of oxidic metal ores with dual temperature (1977-09-06),

Company Overview

Fierro Esponja, S.a. is a leading manufacturer of high-quality cleaning sponges and scrubbers. With a focus on innovation and customer satisfaction, we offer a wide range of products for household and commercial use. Our products are crafted using premium materials to provide superior cleaning performance and durability. Visit our website to explore our full range of products and make a purchase today.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

6 Patents

#11 in Monterrey

#62 in Mexico

Monterrey, Mexico

Fierro Esponja, S.a.

Forward Citations = 73

7 inventors:

Patrick W MacKay (6 out of 12 patents)

Enrique R Martinez-Vera (1 out of 11 patents)

Juan Celada (1 out of 2 patents)

4. Enrique Martinez Vera (1 out of 3 patents)

5. Ramon De La Pena (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Fierro Esponja, S.a.. Retrieved from https://idiyas.com/company/fierro-esponja-s-a

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]