This inventor holds 2 USPTO granted patents. Top assignees: Oce-Nederland B.v., Oce-Van Der Grinten N.v.. Active years: 1978-1981.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Venlo-W., NL (1978)
- Tegelen, NL (1981)
Company Filing History:
Years Active: 1978-1981
Title: The Innovations of Piet M Extra
Introduction
Piet M Extra is a notable inventor based in Venlo-W., Netherlands. He has made significant contributions to the field of electrostatic imaging and developing systems. With a total of 2 patents, his work has advanced the technology used in various imaging applications.
Latest Patents
One of his latest patents is for an "Automatic toner control" system. This invention addresses the challenges of developing electrostatic images on a moving photoconductive support. By controlling the toner content of the developer powder through optical sensing, fluctuations in toner concentration are minimized. The design includes a developer brush shaped to maintain a constant layer thickness, ensuring consistent reflectance measurements. Another significant patent is for an "Apparatus for developing electrostatic charge images." This apparatus enhances the quality of developed images by managing the supply of developing powder effectively. It features a magnetic roller and a system for remixing excess powder, ensuring optimal toner concentration and image quality.
Career Highlights
Piet M Extra has worked with prominent companies such as Oce-van Der Grinten N.V. and Oce-Nederland B.V. His experience in these organizations has contributed to his expertise in imaging technologies and patent development.
Collaborations
Throughout his career, Piet has collaborated with notable individuals, including Jacobus J Van Lieshout and Lambertus R Smeets. These partnerships have fostered innovation and advancements in their respective fields.
Conclusion
Piet M Extra's contributions to the field of electrostatic imaging through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the technology used in imaging systems today.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

