USPTO data - Pennsylvania Report

1. Pittsburgh

25,308

2. Philadelphia

16,362

3. West Chester

7,070

4. Allentown

6,137

5. Yardley

5,254

6. Bethlehem

5,136

7. Lansdale

5,075

8. Lancaster

4,035

9. Doylestown

4,012

10. Harrisburg

3,610

8,033

3,377

3,181

2,941

2,825

2,766

2,507

2,438

2,315

2,198

1. University of Pennsylvania

2,551

2. University of Pittsburgh

1,844

3. Carnegie Mellon University

1,109

4. Drexel University

603

5. Thomas Jefferson University

526

6. Temple University

407

7. Lehigh University

176

8. The Wistar Institute of Anatomy & Biology

157

9. Duquesne University of the Holy Ghost

70

10. Duquesne University of the Holy Spirit

68