DW

David C. Weigel

3M: 13 patents #1,195 of 11,543Top 15%
Overall (All Time): #390,832 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5576074 Laser write process for making a conductive metal circuit David A. Morgan 1996-11-19
5278024 Positive imaging diffusion-transfer dry silver system using formazan dye Richard C. Cotner, Kumars Sakizadeh 1994-01-11
5275932 Thermal development accelerators for thermographic materials Oanh V. Pham 1994-01-04
5206112 Positive imaging diffusion - transfer dry silver system Richard C. Cotner, Kumars Sakizadeh 1993-04-27
5185231 Dry silver systems with fluoran leuco dyes 1993-02-09
5026633 Color photothermographic materials with development accelerator 1991-06-25
4923792 Color photothermographic elements Duncan M. A. Grieve, Stephen S. Poon, Tran V. Thien, Kumars Sakizadeh 1990-05-08
4883747 Color photothermographic elements Duncan M. A. Grieve, Stephen S. Poon, Tran V. Thien, Kumars Sakizadeh 1989-11-28
4795697 Stabilization of ketazine dyes Kim M. Vogel, Roger A. Mader 1989-01-03
4782010 Photohermographic emulsions having stable color forming developers Roger A. Mader, Louis M. Leichter, Kristen A. Hoff 1988-11-01
4587211 Photothermographic stabilizers for syringaldazine leuco dyes Takuzo Ishida 1986-05-06
4585734 Photothermographic toners 1986-04-29
4328181 Indicator material Leon W. Anders 1982-05-04