Inventor · disambiguated record
Dale R. Duvall
Also filed as: DUVALL DALE R
11 granted patents·317 citations·filing 1975–1996
92Inventor score
Files withMEAD CORP4RECOGNITION EQUIPMENT INC3PHOTO CONTROL CORP2OVERHEAD DOOR CORP OF TEXAS1PEASE IND INC1
Top patents by PatentIndex Score
11 records- 0189US4013999ASingle read station acquisition for character recognitionRECOGNITION EQUIPMENT INC·Filed 1975·Granted Mar 22, 1977·45 cites·8 claims
- 0288US4429333ADocument scanning systemMEAD CORP·Filed 1982·Granted Jan 31, 1984·49 cites·10 claims
- 0386US4422100ADocument scanning apparatusMEAD CORP·Filed 1982·Granted Dec 20, 1983·43 cites·8 claims
- 0480US4162481AAdaptive correlator for video processingRECOGNITION EQUIPMENT INC·Filed 1976·Granted Jul 24, 1979·26 cites·12 claims
- 0570US4706227AAcoustic obstruction detector and methodOVERHEAD DOOR CORP OF TEXAS·Filed 1986·Granted Nov 10, 1987·36 cites·9 claims
- 0667US4587621ADevice for electrical variable magnification of document imageMEAD CORP·Filed 1983·Granted May 6, 1986·39 cites·3 claims
- 0766US4157533AIndependent channel automatic gain control for self-scanning photocell arrayRECOGNITION EQUIPMENT INC·Filed 1977·Granted Jun 5, 1979·15 cites·9 claims
- 0862US5294950AIdentification system for automated film and order processing including machine and human readable codePHOTO CONTROL CORP·Filed 1992·Granted Mar 15, 1994·10 cites·14 claims
- 0961US4532602ADevice for electrical variable magnification of document imageMEAD CORP·Filed 1982·Granted Jul 30, 1985·30 cites·12 claims
- 1058US5812895ACamera with negative identification systemPHOTO CONTROL CORP·Filed 1996·Granted Sep 22, 1998·6 cites·8 claims
- 1156US4976122ADeadbolt assembly having selectable backsetPEASE IND INC·Filed 1989·Granted Dec 11, 1990·18 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →