DW

David F. Welch

IN Infinera: 83 patents #2 of 407Top 1%
SD Sdl: 60 patents #1 of 128Top 1%
SL Spectra Diode Laboratories: 16 patents #2 of 22Top 10%
JU Jds Uniphase: 8 patents #44 of 940Top 5%
SS Sprint Spectrum: 4 patents #226 of 810Top 30%
Xerox: 2 patents #3,932 of 8,622Top 50%
HL Hughes Electronics Limited: 1 patents #605 of 1,474Top 45%
AT AT&T: 1 patents #10,626 of 18,772Top 60%
📍 Atherton, CA: #2 of 431 inventorsTop 1%
🗺 California: #705 of 386,348 inventorsTop 1%
Overall (All Time): #4,327 of 4,157,543Top 1%
178
Patents All Time

Issued Patents All Time

Showing 126–150 of 178 patents

Patent #TitleCo-InventorsDate
5933271 Optical amplifiers providing high peak powers with high energy levels Robert G. Waarts, Steven Sanders 1999-08-03
5914978 Semiconductor gain medium with multimode and single mode regions David G. Mehuys, Donald R. Scifres 1999-06-22
5894492 Semiconductor laser with integral spatial mode filter David G. Mehuys, Donald R. Scifres 1999-04-13
5867305 Optical amplifier with high energy levels systems providing high peak powers Robert G. Waarts, Steven Sanders, Donals R. Scifres 1999-02-02
5864574 Semiconductor gain medium with a light Divergence region that has a patterned resistive region David G. Mehuys, Donald R. Scifres 1999-01-26
5799028 Passivation and protection of a semiconductor surface Randall S. Geels, Julian S. Osinski, Donald R. Scifres 1998-08-25
5793521 Differentially patterned pumped optical semiconductor gain media Stephen O'Brien, Alexander Schoenfelder, Robert J. Lang, Amos A. Hardy, Ross A. Parke 1998-08-11
5771252 External cavity, continuously tunable wavelength source Robert J. Lang, David G. Mehuys 1998-06-23
5761234 High power, reliable optical fiber pumping system with high redundancy for use in lightwave communication systems Richard R. Craig, Robert LG. Waarts, John G. Endriz, Dirk J. Kuizenga, Steven Sanders 1998-06-02
5717516 Hybrid laser power combining and beam cleanup system using nonlinear and adaptive optical wavefront compensation Marvin Klein, David M. Pepper, Ronald Stephens, Thomas R. O'Meara, Robert J. Lang +2 more 1998-02-10
5715268 Laser amplifiers with suppressed self oscillation Robert J. Lang, Ross A. Parke, Donald R. Scifres 1998-02-03
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
5565686 Method and apparatus for detecting the presence and location of objects in a field via scanned optical beams 1996-10-15
5539571 Differentially pumped optical amplifer and mopa device Donald R. Scifres, Robert G. Waarts, David G. Mehuys, Amos A. Hardy, Ross A. Parke 1996-07-23
5537432 Wavelength-stabilized, high power semiconductor laser David G. Mehuys, Robert J. Lang, Donald R. Scifres 1996-07-16