DW

David F. Welch

SD Sdl: 10 patents #1 of 13Top 8%
Xerox: 1 patents #350 of 875Top 40%
📍 Atherton, CA: #2 of 41 inventorsTop 5%
🗺 California: #39 of 17,285 inventorsTop 1%
Overall (1997): #438 of 185,788Top 1%
11
Patents 1997

Issued Patents 1997

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
5703897 Semiconductor laser with integral spatial mode filter David G. Mehuys, Donald R. Scifres 1997-12-30
5696779 Wavelength tunable semiconductor laser with mode locked operation David G. Mehuys, Donald R. Scifres 1997-12-09
5689123 III-V aresenide-nitride semiconductor materials and devices Jo S. Major, Donald R. Scifres 1997-11-18
5677920 Upconversion fiber laser Robert G. Waarts, Steven Sanders, Donald R. Scifres 1997-10-14
5657153 Optical amplifier with complementary modulation signal inputs John G. Endriz, Robert G. Waarts, Steven Sanders, Donald R. Scifres 1997-08-12
5657157 Semiconductor optical amplifying media with reduced self-focusing Robert J. Lang, Julian S. Osinski 1997-08-12
5654229 Method for replicating periodic nonlinear coefficient patterning during and after growth of epitaxial ferroelectric oxide films Florence Leplingard, John J. Kingston, Ross D. Bringans, David K. Fork, Robert G. Waarts +1 more 1997-08-05
5651018 Wavelength-stabilized, high power semiconductor laser David G. Mehuys, Robert J. Lang, Donald R. Scifres 1997-07-22
5644584 Tunable blue laser diode Derek W. Nam, Robert G. Waarts, Jo S. Major 1997-07-01
5602864 Semiconductor laser with integral spatial mode filter David G. Mehuys, Donald R. Scifres 1997-02-11
5592503 Semiconductor laser with integral spatial mode filter David G. Mehuys, Donald R. Scifres 1997-01-07