![]() |
![]() |
![]() |
![]() |
![]() |
E-Resources
|
![]() |
![]() |
(1049) Resources In 'Engineering' |
![]() |
Important Engineering Patents & Trademarks |
![]() |
Derwent Innovations Index
|
![]() |
esp@cenet - European Patent Office
|
![]() |
Official Gazette of the United States Patent and Trademark Office
|
![]() |
U.S. Patent and Trademark Office
|
![]() |
United States Patent and Trademark Office Glossary
|
![]() |
United States Patent and Trademark Office Manual of Classification
|
![]() |
© University of Pennsylvania | 215-898-7555 | library@pobox.upenn.edu |