Location History:
- 37800 Toijala, FI (1978 - 1985)
- Porvoo, FI (2013)
- Valkeakoski, FI (2012 - 2014)
Company Filing History:
3 out of 4 
2 out of 4 
1 out of 1 Years Active: 1978-2014
Title: The Innovative Mind of Pentti Virtanen from Valkeakoski, FI
Introduction:
Pentti Virtanen, a prolific inventor hailing from Valkeakoski, FI, has made significant strides in the paper manufacturing industry with a total of 6 patents to his name. His groundbreaking inventions have revolutionized the way paper and cardboard are produced, focusing on the use of acidic water in the manufacturing process.
Latest Patents:
Two of his latest patents showcase his ingenuity:
1. "Use of acidic water in the manufacture of paper" - A method that utilizes an aqueous composition with specific pH levels to manufacture paper or cardboard efficiently.
2. "Process for manufacturing paper or board" - A unique process that involves diluting pulp with acidic water and raising the pH value with an alkali, resulting in improved paper quality.
Career Highlights:
Pentti Virtanen has left an indelible mark on the industry through his work with notable companies such as Nordkalk Oy Ab and Fractivator Oy. His expertise and innovative thinking have been instrumental in pushing the boundaries of traditional paper manufacturing techniques.
Collaborations:
Throughout his career, Pentti Virtanen has collaborated with esteemed professionals in the field, including his coworker Sakari Saastamoinen. Together, they have contributed to advancements in the industry and have paved the way for future innovations.
Conclusion:
In conclusion, Pentti Virtanen's dedication to innovation and his relentless pursuit of excellence have positioned him as a trailblazer in the realm of paper manufacturing. His patents and collaborations attest to his impressive contributions to the field, and his work continues to inspire generations of inventors and industry professionals alike.