RB

Ralph H. Bradley

NP North American Philips: 7 patents #27 of 645Top 5%
PA Philips Electronics North America: 5 patents #69 of 725Top 10%
NE North American Philips Consumer Electronics: 3 patents #9 of 80Top 15%
U.S. Philips: 2 patents #2,537 of 8,851Top 30%
NE Nap Consumer Electronics: 1 patents #3 of 9Top 35%
📍 Kingsport, TN: #89 of 821 inventorsTop 15%
🗺 Tennessee: #963 of 20,272 inventorsTop 5%
Overall (All Time): #280,180 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
6191893 Color projection display system with improved hue variation 2001-02-20
5999321 Dichroic filters with low nm per degree sensitivity 1999-12-07
5892623 Mutli-color-band light source 1999-04-06
5845981 Multi-color-band scrolling across single-panel light valve 1998-12-08
5608467 Single panel color projection video display Peter Janssen, Joseph P. Bingham, William F. Guerinot, Detlev Otto 1997-03-04
5532763 Single panel color projection video display Peter Janssen, Joseph P. Bingham, William F. Guerinot, Detlev Otto 1996-07-02
5168351 Short focal length video color projector employing dichroic mirror block Leendert Vriens, William F. Guerinot, Jill F. Goldenberg 1992-12-01
5084807 Illumination system for LCD projection television Thomas Stewart McKechnie, Jill F. Goldenberg, Joshua D. Eskin, Jeffrey A. Shimizu, William F. Guerinot 1992-01-28
5076661 Rear projection screen 1991-12-31
4964695 Lenticular arrays for front projection screens and contrast improving method and device 1990-10-23
4928182 Dual aspect ratio display with cyclicly moving raster area to prevent uneven phosphor aging William F. Guerinot, Stephen T. Troemel 1990-05-22
4864390 Display system with equal path lengths Thomas Stewart McKechnie, Jill F. Goldenberg, Joshua D. Eskin, Jeffrey A. Shimizu, William F. Guerinot 1989-09-05
4773731 One-piece projection screen Jill F. Goldenberg, William F. Guerinot, Thomas Stewart McKechnie 1988-09-27
4767186 Front projection screen with rear light concentrating lens array William F. Guerinot 1988-08-30
4701020 Rear projection screen with improved luminance uniformity 1987-10-20
4679069 Color picture projection system with a wavelength-selective reflector for filtering out undesired light from a monochrome picture display source Johan Andrea, Eugene Lubchenko 1987-07-07
4573764 Rear projection screen 1986-03-04