Growing community of inventors

South San Francisco, CA, United States of America

David A Rowland

Average Co-Inventor Count = 1.30

ph-index = 4

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 107

David A RowlandOtto Zapf (1 patent)David A RowlandDouglas Drane (1 patent)David A RowlandPaula Fracasso (1 patent)David A RowlandDavid A Rowland (5 patents)Otto ZapfOtto Zapf (43 patents)Douglas DraneDouglas Drane (3 patents)Paula FracassoPaula Fracasso (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (2 from 832,812 patents)

2. Allsteel Inc. (1 from 51 patents)

3. Drane Associates, LP (1 from 1 patent)


5 patents:

1. 8024276 - Method for interactive learning and training

2. D503560 - Stacking chair

3. D337003 - Chair

4. 4774589 - Optical system image stabilizer employing electromechanical torque

5. 4433597 - Combined bottle cap opener

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/21/2025
Loading…