The following portfolio contains drawings prepared classically using technical drafting pens. The images presented have been prepared from photocopies of our source which were originally prepared on Bristol board. Traditionally, clients received our final sets of drawings for an application delivered on Bristol board for filing with the USPTO. Note the perceived image quality is effected by having been derived from 2nd generation photocopies and optimization for online presentation. As with all our drawings, source drawings and filing deliverables are 100% digital and of excellent quality.

Beginning in 1991, we transitioned from preparing drawings by hand to preparing formal drawings 100% digitally using vector graphics. We rely exclusively on Adobe's Creative Suite of products for vector based illustration. Please be patient as the images load.

Note: The images will automatically advance. You may swipe, use keyboard arrows or mouse to navigate.

Circa 1988-1991


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