Company Filing History:
3 out of 1,150 
1 out of 4 Years Active: 1983-1992
Title: Wilhelm Schwenk: Innovator in Metallic Coating Technologies
Introduction
Wilhelm Schwenk is a notable inventor based in Duisburg, Germany. He has made significant contributions to the field of metallic coatings, particularly in the oil and gas industry. With a total of 4 patents to his name, Schwenk's work has advanced the methods of applying metallic coatings to steel pipes.
Latest Patents
One of Schwenk's latest patents is a method for forming a metallic coating on steel pipes. This innovative technique involves applying a metallic coating to sealing and threaded regions of steel pipes that are under high pressure. The process includes a pretreatment of the surface, which consists of cleaning, degreasing, and electrolytic deposition of a layer of tin. This is followed by a first heat treatment at a temperature between about 150°C and 200°C, and a second brief heat treatment above the melting point of tin, resulting in a durable metallic coating.
Another significant patent by Schwenk is a method for electrolytically tin plating articles. This method is particularly useful for tubing in the oil and gas industry. The process involves cleaning, degreasing, and pickling the threads of the tubing, followed by nickel-coating without electric current. The article is then electrolytically plated, preferably with tin, and subjected to a specific temperature range for optimal results.
Career Highlights
Throughout his career, Wilhelm Schwenk has worked with prominent companies such as Mannesmann Aktiengesellschaft and Mannesmannufer Aktiengesellschaft. His experience in these organizations has allowed him to refine his expertise in metallic coatings and contribute to various innovative projects.
Collaborations
Schwenk has collaborated with notable individuals in his field, including Norbert Niehaus and Werner Friehe. These partnerships have further enhanced his work and led to advancements in coating technologies.
Conclusion
Wilhelm Schwenk's contributions to the field of metallic coatings have made a significant impact, particularly in the oil and gas industry. His innovative methods and collaborations with industry professionals highlight his role as a key inventor in this specialized area.