Inventor

VOLK HEINRICH

DE36 patents

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

VOLK HEINRICH

HOECHST AG

Process for the preparation of 2(3H)-benzothiazolones

Process for the preparation of 2-aminobenzothiazoles

Process for the purification of 2-hydroxynaphthalene-6-carboxylic acid

Water-insoluble disazomethine mixed metal-complex compounds, process for preparing them and their use as colorants

Metal-containing disazomethine compounds, process for preparing them and their use as colorants

Novel 2-hydroxynaphthalene-1-aldehydes, process for preparing them and their use

Water-insoluble nickel-complex disazo methine compounds

Novel 2-hydroxynaphthalene-1-aldehydes, process for preparing them and their use

Water-in-soluble disazo methine compounds

Process for the preparation of 3-hydroxy-N-benzimidazolon-5-yl-2-naphthamide in the high purity required of azo pigments

Process for preparing 6-acetoxy-2-naphthoic-acid and pure 6-hydroxy-2-naphthoic acid

Process for separation of 2-hydroxynapthalene-3-carboxylic acid from the reaction mixtures of alkali metal salts of 2-hydroxynaphthalene and carbon dioxide

Process for preparing pure alkyl 1-hydroxy-2-naphthoates

ESSELTE METO INT GMBH

Framework for portable printers

Portable hand-held labelling and marking device and printing mechanism housing therefor

Hand-held portable labelling device and the inking roller mounting therefor

Printer with plural endless bands and stop means therefor

Stacking device for card-shaped products

Portable hand-held labelling and marking device and printing mechanism therefor

Setting mechanism for endless band printing device

Printing mechanism with torque limiting detent elements on actuating knob

Setting mechanism for selective printing member

Printing mechanism with torque limiting detent elements on actuating knob

Printing band, in particular for price marking devices

Printed band, in particular for price marking devices

ESSELTE PENDAFLEX CORP

Apparatus for printing or applying self-adhesive labels

Printing apparatus for use with price labeller or the like

Labelling apparatus

Hand labeling device

Setting means for printer with plural endless bands

Printer with plural endless bands and setting means therefore

Portable labeling machine

Printing mechanism

CLARIANT GMBH

Process for preparing arylhydrazines

METO INTERNATIONAL GMBH

Detent device for a key shaft of a printing mechanism

ESSELTE METO INT PRODUKTIONS GMBH

Hand held labeler