Product Designer
In his heart, David Ullman is a designer. While much of his career was spent helping others learn how to design, he did find time to design products himself.

Bicycle Design
During the 1990s he founded, led, and designed products for BikeE Corp., the largest recumbent bicycle manufacturer in the world at that time. The "AT" model was given awards as one of the best bicycles of the era. The tandem was one of the most ridable two-person bikes produced. Over 30,000 of his bicycles were sold during BikeE's ten year life.

Aircraft Models
Ullman has designed detailed scale models of early aircraft for the Model Expo company. These kits include laser cut wood, photoetched, and cast parts. Ullman developed and produced detailed plans for its construction. Model Expo has sold many thousands of each of these kits. Click on an image to go to the Model Expo site.
Ullman has also designed products in the health care, transit and wood products industries.
​​