Inventor

SIEBERS FRIEDRICH

DE57 patents

⚠️ This page may combine multiple inventors who share the name “SIEBERS FRIEDRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SIEBERS FRIEDRICH

SCHOTT AG

Flat float glass

Optically detectable, floatable arsenic- and antimony-free, glazable lithium-aluminosilicate glass

Transparent coloured lithium aluminium silicate glass ceramic and process for production and use of the glass ceramic

Glass ceramic with reduced lithium content

Coloured stove sightglass with colour-neutral transmission characteristics

Transparent glass ceramic plate that has an opaque, colored bottom coating over the entire surface or over part of the surface

Method of making a glass-ceramic article

Transparent, dyed cook top or hob with improved colored display capability and a method for the manufacturing of such a cook top or hob

Method for producing a glass ceramic with a predefined transmittance

Transparent, dyed cook top or hob with improved colored display capability and a method for the manufacturing of such a cook top or hob

Highly crystalline lithium aluminium silicate glass-ceramic and its use

Transparent low-color lithium aluminum silicate glass ceramic and the use thereof

Borosilicate glass syringe with cone coating that increases surface roughness

Method of making a float glass subsequently convertible into a glass ceramic

Glass ceramic with reduced lithium content

High-strength colored glass ceramics as a cooktop, smooth on both sides

Sintered glass ceramic and method for producing the same

Fitout articles and articles of equipment for kitchens or laboratories with a lighting element

Method for producing a coated substrate, planar substrate, comprising at least two layers applied by means of heating, and the use of the coated substrate

Fitout articles and articles of equipment for kitchens or laboratories with a lighting element

Cooking device with a glass-ceramic panel providing a cooking surface in a variety of different colors and method of making same

Nonporous keatite glass ceramic support plate for transporting products during heat treatment, method of making same and method of transporting products therewith

Substrate provided with a coating based on a glass flux, glass flux material, and method for coating a glass or glass ceramic substrate

Glass ceramic and method for producing same

Method for producing glasses, glass ceramics and the use of same

Sintered glass ceramic and method for producing the same

Fitout articles and articles of equipment for kitchens or laboratories with a display device

Method for producing a coated substrate, planar substrate, comprising at least two layers applied by means of heating, and the use of the coated substrate

SCHOTT GLAS

Flat float glass

Cooking surface for cooking food having a glass ceramic surface with a glass coating thereon

Lead-free and cadmium-free glass compositions for glazing, enameling and decorating glass of glass-ceramics

Cooking stove and method for production and components thereof

Glass ceramic

Cooking stove having a smooth-top glass ceramic cooktop, and a smooth-top glass ceramic cooktop with a glass ceramic cooktop cooking surface, method for production of stoves with smooth-top glass ceramic cooktops and smooth-top glass ceramic cooktops

Glass-ceramic cooking panel that makes deposited material, such as dirt, less conspicuous

Composite solder glass, filling material for same and methods of using same

Cooking device with a glass-ceramic panel providing a cooking surface in a variety of different colors and method of making same

SIEBERS FRIEDRICH

Transparent or transparent colored lithium aluminum silicate glass ceramic articles having adapted thermal expansion and use thereof

Transparent, dyed cooktop

Glass ceramic as a cooktop for induction heating having improved colored display capability and heat shielding, method for producing such a cooktop, and use of such a cooktop

Transparent, dyed cooktop having improved color display capability, and method for producing such a cooktop

Lithium-aluminosilicate glass with short glazing times

Glass ceramic armor material

SCHOTT GLASWERKE

Glass powder which is crystallizable to yield a sintered glass ceramic containing hexagonal cordierite as the principal crystalline phase

Lead-and cadmium-free glass composition for glazing, enameling and decorating glass

Process for the manufacture of open porous sintered bodies being prepronderantly composed of glass ceramics

LAUTENSCHLAEGER GERHARD

Method of making a float glass convertible into a glass ceramic and float glass made thereby

SCHOENBERGER KLAUS

Method of environmentally friendly melting and refining of a glass melt for a crystallizable glass of a lithium aluminium silicate (LAS) glass ceramic

DOERK BIRGIT

High-strength colored glass ceramics as a cooktop, smooth on both sides

SCHNEIDER MEIKE

Metal colloid-colored glass ceramic and colorless glass convertible into same