The guru of Services Drafts Glenn Freiman Mechanical Engineer with experience in product development, manufacturing and patent drafting. I am a Mechanical Engineer with over 20 years experience in product development and manufacturing. I have worked for numerous manufacturing companies in various roles including product development, manufacturing engineering and production management. All of my work is done in 3D CAD using SolidWorks. As a freelancer, I have been producing patent drawings for individual inventors and patent attorneys for over 15 years. I have created hundreds of drawings without a single rejection from the USPTO. Work Terms I work on Guru part time in addition to my full time position as an engineer. I live on the east coast of the USA and typically work in the early morning, evenings and weekends.