Inventor
ROBERTS DOUGLAS J
US23 patents
⚠️ This page may combine multiple inventors who share the name “ROBERTS DOUGLAS J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EMHART GLASS SA
9 patentsUS5974835ANov 2, 1999
I.S. machine
EMHART GLASS SA12 citations73
US5958101ASep 28, 1999
Mold opening and closing mechanism for an I.S. machine
EMHART GLASS SA10 citations73
US5938809AAug 17, 1999
I.S. machine
EMHART GLASS SA9 citations73
US5931982AAug 3, 1999
Baffle mechanism for an I.S. machine
EMHART GLASS SA16 citations73
US5902370AMay 11, 1999
Mold opening and closing mechanism for an I S machine
EMHART GLASS SA7 citations73
US5876476AMar 2, 1999
I.S. machine
EMHART GLASS SA8 citations73
US5858050AJan 12, 1999
I.S. machine
EMHART GLASS SA16 citations73
US5891209AApr 6, 1999
Mold opening and closing mechanism for an I. S. machine
EMHART GLASS SA2 citations62
US5887450AMar 30, 1999
Mold opening and closing mechanism for an I.S. machine
EMHART GLASS SA5 citations62
EMHART GLASS MACH INVEST
7 patentsUS5527372AJun 18, 1996
Pusher mechanism for I.S. glass forming machine
EMHART GLASS MACH INVEST27 citations92
US5895513AApr 20, 1999
Takeout mechanism for an I.S. machine
EMHART GLASS MACH INVEST24 citations91
US5865868AFeb 2, 1999
Mold carrier assembly for an I. S. machine mold opening and closing mechanism
EMHART GLASS MACH INVEST8 citations73
US5833732ANov 10, 1998
I.S. machine
EMHART GLASS MACH INVEST8 citations73
US5833731ANov 10, 1998
I S machine
EMHART GLASS MACH INVEST8 citations73
US5830254ANov 3, 1998
Mold opening and closing mechanism for an I.S. machine
EMHART GLASS MACH INVEST16 citations73
US5277296AJan 11, 1994
Ware transfer mechanism
EMHART GLASS MACH INVEST11 citations73
GERBER COBURN OPTICAL INC
3 patentsUS6645059B1Nov 11, 2003
Device for retaining abrasive pad on lap in eyeglass lens making apparatus
GERBER COBURN OPTICAL INC8 citations71
US6561886B2May 13, 2003
Device for retaining abrasive pad on lap in eyeglass lens making apparatus
GERBER COBURN OPTICAL INC10 citations71
US6464559B2Oct 15, 2002
Device for retaining abrasive pad on lap in eyeglass lens making apparatus
GERBER COBURN OPTICAL INC3 citations60