Inventor · disambiguated record
Douglas J. Roberts
Also filed as: ROBERTS DOUGLAS · ROBERTS DOUGLAS J
22 granted patents·1 pending application·268 citations·filing 1982–2022
96Inventor score
Files withEMHART GLASS SA8EMHART GLASS MACH INVEST7GERBER COBURN OPTICAL INC3ROBERTS DOUGLAS J2DELL PRODUCTS LP1
Top patents by PatentIndex Score
23 records- 0193US4426153AApparatus for the reduction of image intensity variations in a continuously variable reducing copierIBM·Filed 1982·Granted Jan 17, 1984·50 cites·9 claims
- 0287US8141442B2Pipe scannerROBERTS DOUGLAS J·Filed 2009·Granted Mar 27, 2012·20 cites·19 claims
- 0384US8061208B2Non-destructive pipe scannerROBERTS DOUGLAS J·Filed 2009·Granted Nov 22, 2011·6 cites·18 claims
- 0477US5527372APusher mechanism for I.S. glass forming machineEMHART GLASS MACH INVEST·Filed 1994·Granted Jun 18, 1996·27 cites·14 claims
- 0573US5895513ATakeout mechanism for an I.S. machineEMHART GLASS MACH INVEST·Filed 1997·Granted Apr 20, 1999·24 cites·3 claims
- 0670US6561886B2Device for retaining abrasive pad on lap in eyeglass lens making apparatusGERBER COBURN OPTICAL INC·Filed 2000·Granted May 13, 2003·10 cites·10 claims
- 0762US5830254AMold opening and closing mechanism for an I.S. machineEMHART GLASS MACH INVEST·Filed 1997·Granted Nov 3, 1998·16 cites·3 claims
- 0861US5858050AI.S. machineEMHART GLASS SA·Filed 1997·Granted Jan 12, 1999·16 cites·5 claims
- 0953US5974835AI.S. machineEMHART GLASS SA·Filed 1997·Granted Nov 2, 1999·12 cites·6 claims
- 1050US6464559B2Device for retaining abrasive pad on lap in eyeglass lens making apparatusGERBER COBURN OPTICAL INC·Filed 2000·Granted Oct 15, 2002·3 cites·6 claims
- 1149US5958101AMold opening and closing mechanism for an I.S. machineEMHART GLASS SA·Filed 1997·Granted Sep 28, 1999·10 cites·6 claims
- 1246US12401635B2Automatically generating task-based and limited-privilege user security credentialsDELL PRODUCTS LP·Filed 2022·Granted Aug 26, 2025·0 cites·20 claims
- 1346US5938809AI.S. machineEMHART GLASS SA·Filed 1997·Granted Aug 17, 1999·9 cites·7 claims
- 1446US5277296AWare transfer mechanismEMHART GLASS MACH INVEST·Filed 1993·Granted Jan 11, 1994·11 cites·5 claims
- 1545US5865868AMold carrier assembly for an I. S. machine mold opening and closing mechanismEMHART GLASS MACH INVEST·Filed 1997·Granted Feb 2, 1999·8 cites·3 claims
- 1645US5833732AI.S. machineEMHART GLASS MACH INVEST·Filed 1997·Granted Nov 10, 1998·8 cites·5 claims
- 1745US5833731AI S machineEMHART GLASS MACH INVEST·Filed 1997·Granted Nov 10, 1998·8 cites·9 claims
- 1844US6645059B1Device for retaining abrasive pad on lap in eyeglass lens making apparatusGERBER COBURN OPTICAL INC·Filed 1999·Granted Nov 11, 2003·8 cites·7 claims
- 1944US5876476AI.S. machineEMHART GLASS SA·Filed 1997·Granted Mar 2, 1999·8 cites·5 claims
- 2042US5902370AMold opening and closing mechanism for an I S machineEMHART GLASS SA·Filed 1997·Granted May 11, 1999·7 cites·20 claims
- 2141US5887450AMold opening and closing mechanism for an I.S. machineEMHART GLASS SA·Filed 1997·Granted Mar 30, 1999·5 cites·9 claims
- 2234US5891209AMold opening and closing mechanism for an I. S. machineEMHART GLASS SA·Filed 1997·Granted Apr 6, 1999·2 cites·13 claims
- 2330US2002097932A1Spherical bearingFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →