| Patents for C03B 23 - Re-forming shaped glass (8,539) |
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| 04/24/1991 | EP0423242A1 Apparatus for machining by the means of a plasma beam a workpiece made of a material of high softening or melting point, especially quartz, glass or a metal |
| 04/23/1991 | US5009695 Apparatus for producing two dimensionally bent glass |
| 04/23/1991 | US5009694 Method for heat treatment of glass plate to strengthen its peripheral region |
| 04/23/1991 | US5009693 Method and apparatus for bending glass |
| 04/23/1991 | US5009691 Method of bending glass plate |
| 04/23/1991 | CA1283294C Extended surface pressing mold |
| 04/18/1991 | DE4037506A1 Glass sheet bending mould - with metal mask on edge of insulated female mould element |
| 04/10/1991 | EP0421784A1 Method and apparatus for bending glass |
| 04/09/1991 | US5006146 Apparatus for bending glass plates into convex shape |
| 04/09/1991 | CA1282597C Sheet positioning system for horizontal press bending of glass sheets |
| 04/09/1991 | CA1282596C Horizontal press bending of glass sheets |
| 04/09/1991 | CA1282595C Horizontal press bending of heat softened glass sheets |
| 04/03/1991 | EP0419746A1 Annular oven on a turning base for one of the faces of a form for optical lenses to conform by thermal treatment and application of a vacuum |
| 04/02/1991 | US5004492 Glass sheet conveying and bending apparatus |
| 04/02/1991 | US5004491 Glass sheet forming method and apparatus utilizing lower full surface vacuum mold and upper ring mold |
| 03/27/1991 | EP0418700A1 Reverse curvature bending iron |
| 03/26/1991 | US5002599 Heated glass sheet topside support device |
| 03/21/1991 | WO1991003432A1 Glass sheet conveying and bending apparatus |
| 03/21/1991 | DE3929894A1 Continuous optic fibre drawing giving no stoppages of fresh material - uses preform chucks which change places to keep continuous feed to furnace |
| 03/13/1991 | CN1049833A Glass sheet conveying and bending apparatus |
| 03/12/1991 | US4999039 Method and apparatus for manufacture of thin sheet glass |
| 03/12/1991 | CA1281189C Universal-type interruption closure for apparatus for bending glass sheets |
| 03/07/1991 | WO1991001012A3 Double axial gradient lens and process for fabrication thereof |
| 03/07/1991 | DE3929193A1 Appts. for fusing glass tube onto glass bar for optical cables - has chuck, clamping sleeve and ring for tube, clamping sleeve and ring for rod |
| 03/06/1991 | EP0415827A1 Apparatus for bending glass-sheets |
| 03/06/1991 | EP0415826A1 Apparatus for bending glass-sheets in a horizontal position |
| 03/06/1991 | CN1011888B Method and equipment for forming glass plate |
| 03/05/1991 | CA1280985C Conveyor roller for roller conveyor in glass sheet processing system |
| 02/27/1991 | EP0414232A1 Laminated glass and a method of bending glass plates for a laminated glass |
| 02/26/1991 | CA1280607C Method of forming a glass sheet with an oil-base ceramic paint thereon |
| 02/20/1991 | EP0413619A1 Method of bending glass sheets |
| 02/13/1991 | EP0412341A1 Method and apparatus for manufacturing a bent glass sheet |
| 02/12/1991 | US4992088 Process and apparatus for the bending of flat sheets of glass |
| 02/12/1991 | US4992086 Multifocal lens method |
| 02/05/1991 | US4990170 Method and apparatus for bending and tempering glass plates |
| 01/31/1991 | DE4023975A1 Forming of glass lenses in 2-stage process - lens blanks are produced by grinding under an anode tool and then pressed in a heated polished tool |
| 01/30/1991 | CN1011407B Heating furnace seal apparatus for drawing glass rod |
| 01/29/1991 | CA1279484C Glass plate heating/bending device |
| 01/24/1991 | WO1991001012A2 Double axial gradient lens and process for fabrication thereof |
| 01/23/1991 | EP0409695A1 Method and apparatus for manufacturing curved and/or enamelled sheets of glass |
| 01/23/1991 | EP0409447A2 Method of making fiber optic couplers |
| 01/23/1991 | EP0408926A1 A method of making capillary tubes and application as connecting ferruls for optical fibres |
| 01/22/1991 | US4986939 Method for the production of cylindrically symmetric bodies with a radial gradient |
| 01/22/1991 | US4986842 Heat transfer method in a glass sheet bending furnace and bending furnace |
| 01/15/1991 | US4985059 Method and apparatus for positioning a glass sheet traveling on a conveyor |
| 01/14/1991 | CA2036377A1 Double axial gradient lens and process for fabrication thereof |
| 01/10/1991 | WO1990014209A3 Moulding of thermoplastic sheet materials |
| 01/08/1991 | US4983205 Apparatus for bending glass plates |
| 01/08/1991 | US4983204 Apparatus for bending glass sheets |
| 01/08/1991 | US4983202 Glass sheet heating furnace and method of using |
| 01/08/1991 | US4983201 Method and apparatus in a glass sheet bending furnace for preventing the deflection of mould wagon bearing rails |
| 01/08/1991 | US4983200 Glass shaping ring having a thermal insulating member and method of shaping glass sheets using same |
| 01/08/1991 | US4983195 Method of making fiber optic coupler with longitudinal protrusions |
| 01/02/1991 | CA1278549C Glass container, and process for manufacturing same |
| 01/01/1991 | US4981505 Apparatus for heat-sealing a glass container |
| 01/01/1991 | US4981435 For receiving and holding a work piece |
| 12/27/1990 | WO1990015781A1 Apparatus for heating, bending and quenching glass sheets |
| 12/27/1990 | EP0404677A1 Apparatus for tempering glass-sheets by contact |
| 12/27/1990 | EP0404676A1 Method and apparatus for bending and tempering by contact |
| 12/25/1990 | US4979977 Bending iron having member to effect reverse bend and method of using same |
| 12/25/1990 | US4979972 Method of making fiber optic couplers |
| 12/12/1990 | CN1047665A Method and apparatus for conveying glass sheets |
| 12/12/1990 | CN1047664A Apparatus for processing glass |
| 12/11/1990 | US4976763 Installation for curving and tempering a sheet of glass |
| 12/11/1990 | US4976762 Method and apparatus for bending and tempering a glass sheet |
| 12/05/1990 | EP0400631A2 Method for heat treatment of glass plate to strengthen its peripheral region |
| 12/05/1990 | EP0400030A1 Combined glass sheet bending and quench station |
| 12/04/1990 | US4975103 Process for producing a planar glass substrate coated with a dielectric layer system |
| 12/04/1990 | CA1277124C Method of making low loss fiber optic coupler |
| 11/29/1990 | WO1990014316A1 Process for the manufacture of objects with small complex cross-sections |
| 11/29/1990 | WO1990014315A1 Apparatus for processing glass |
| 11/29/1990 | WO1990014209A2 Moulding of thermoplastic sheet materials |
| 11/28/1990 | CN1047270A Method for processing decorative glass and products thereof |
| 11/27/1990 | US4973348 Carriage to carry mold for bending glass sheets |
| 11/27/1990 | US4973344 Method and apparatus for bending glass sheets |
| 11/27/1990 | CA1276905C Method of correcting the attitude of an article being conveyed |
| 11/27/1990 | CA1276788C Adjustable quench for tempering a shaped glass sheet |
| 11/22/1990 | EP0398759A2 Method of heating glass sheet for laminated glass |
| 11/15/1990 | WO1990013392A1 Apparatus for machining by the means of a plasma beam a workpiece made of a material of high softening or melting point, especially quartz, glass or a metal |
| 11/15/1990 | DE3943492C1 Cast iron curving shape for glass windows - contains carbon, silicon, chromium nickel, for press curving glass |
| 11/14/1990 | EP0397502A1 Sheet glass bending apparatus |
| 11/13/1990 | US4969966 Method of producing curved laminated glass panels |
| 10/31/1990 | EP0395467A2 Method and apparatus for bending and tempering glass sheets |
| 10/31/1990 | EP0394640A1 Method for making silica tubes or tubes with a high content of silicic acid with low diameter variation |
| 10/31/1990 | EP0394580A1 Apparatus for forming micropipette of controlled configuration by moving the point of heat application |
| 10/30/1990 | US4966618 Method and apparatus for bending and tempering glass plates |
| 10/30/1990 | CA1275571C Glass shaping mold |
| 10/30/1990 | CA1275570C Dual ring segmented block tempering ring |
| 10/30/1990 | CA1275569C Method and apparatus to reduce tip curl of a glass sheet on a bending mold |
| 10/30/1990 | CA1275568C Lightweight bending iron heat shields |
| 10/25/1990 | CA2015238A1 Glass sheet cambering and tempering device and process |
| 10/18/1990 | WO1990011973A1 Method and apparatus for conveying glass sheets |
| 10/17/1990 | EP0392886A2 Apparatus for bending and tempering glass sheets |
| 10/17/1990 | EP0267119B1 Bending/tempering apparatus in the production of flat or bent glass sheets |
| 10/02/1990 | US4961025 Cathode for image intensifier tube having reduced veiling glare |
| 10/02/1990 | US4960316 Capillary splice |
| 10/02/1990 | CA1274695A1 Optical waveguide glass fiber flame processing |
| 10/02/1990 | CA1274694A1 Apparatus for and method of bending glass sheets |
| 10/02/1990 | CA1274693A1 Tempering ring with pivoting glass sheet support member |
| 09/26/1990 | EP0389323A1 Apparatus for bending and tempering a glass sheet |