Company Filing History:
1 out of 3 
1 out of 4 
1 out of 8 Years Active: 1995-2005
Title: Innovations of James J Petroski
Introduction
James J Petroski is an accomplished inventor based in Crawfordsville, Indiana. He holds three patents that showcase his expertise in the field of materials and mechanical engineering. His innovative contributions have significantly impacted the industries he has worked in.
Latest Patents
One of his latest patents is a polishing pad designed for use in chemical-mechanical planarization of semiconductor wafers. This polishing pad is made from a fibrous matrix, such as cellulose, combined with a thermoset resin binder, like phenolic resin. The pad features a ground polishing surface that forms asperities, allowing for a porous structure that effectively stores polishing slurry and debris during the polishing process. This design enhances the flow distribution of the polishing slurry and includes a method for manufacturing the pad.
Another notable patent is for a continuous yarn laid wet friction material. This invention involves a friction disk suitable for use in a transmission assembly of interleaved disks. The disk features a rigid metallic core covered with a non-woven yarn, which consists of a continuous length of heat-resistant yarn. The yarn is bonded to the core using a thermosetting resin, ensuring that the yarn retains porosity for the cooling transmission fluid.
Career Highlights
Throughout his career, James J Petroski has worked with reputable companies, including Raybestos Products Company and Raytech Composites, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas.
Collaborations
James has collaborated with notable coworkers, including John J Easton and James P Macey. Their combined expertise has contributed to the successful development of various projects and patents.
Conclusion
James J Petroski is a distinguished inventor whose work in polishing pads and friction materials has made a significant impact in the engineering field. His innovative spirit and dedication to advancing technology continue to inspire future developments.