Gero Heymer

Person

Erftstadt, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Aluminum nitride powder and a process for the preparation thereof
- Patent number 4,923,691
- Issue date May 8, 1990
- Hoechst Aktiengesellschaft
- Dieter Peters
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Continuous process for complete removal or organic impurities from...
- Patent number 4,906,445
- Issue date Mar 6, 1990
- Hoechst Aktiengesellschaft
- Gunther Schimmel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for reducing the reactivity and improving the flow behavior...
- Patent number 4,705,529
- Issue date Nov 10, 1987
- Hoechst Aktiengesellschaft
- Gunther Schimmel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for making an alkali phosphate solution
- Patent number 4,678,650
- Issue date Jul 7, 1987
- Hoechst Aktiengesellschaft
- Reinhard Gradl
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for dearsenifying phosphoric acid solutions
- Patent number 4,668,492
- Issue date May 26, 1987
- Hoechst Aktiengesellschaft
- G/u/ nther Schimmel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for making pulverulent ammonium polyphosphates stable to hy...
- Patent number 4,639,331
- Issue date Jan 27, 1987
- Hoechst Aktiengesellschaft
- Georg Elsner
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for defluorinating alkali metal phosphate solutions
- Patent number 4,620,966
- Issue date Nov 4, 1986
- Hoechst Aktiengesellschaft
- Gunther Schimmel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Apparatus for improving the degree of graphitization of carbon blac...
- Patent number 4,601,887
- Issue date Jul 22, 1986
- Hoechst Aktiengesellschaft
- Friedrich-Wilhelm Dorn
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for making manganese (II) salt solutions containing ammoniu...
- Patent number 4,600,565
- Issue date Jul 15, 1986
- Hoechst Aktiengesellschaft
- Klaus Lehr
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for purifying wet-processed phosphoric acid
- Patent number 4,596,703
- Issue date Jun 24, 1986
- Hoechst Aktiengesellschaft
- Reinhard Gradi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for removing organic contaminants from wet-processed phosph...
- Patent number 4,540,558
- Issue date Sep 10, 1985
- Hoechst Aktiengesellschaft
- Reinhard Gradl
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for removing fluorine and organic compounds from prepurifie...
- Patent number 4,539,192
- Issue date Sep 3, 1985
- Hoechst Aktiengesellschaft
- Gunther Schimmel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for separating carbon black from an aqueous suspension
- Patent number 4,530,769
- Issue date Jul 23, 1985
- Hoechst Aktiengesellschaft
- Manfred Wolter
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for separating gallium and indium from aqueous solutions
- Patent number 4,525,333
- Issue date Jun 25, 1985
- Hoechst Aktiengesellschaft
- Gunther Schimmel
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for making titanium dioxide concentrates
- Patent number 4,517,163
- Issue date May 14, 1985
- Hoechst Aktiengesellschaft
- Klaus Jodden
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for removing nitrogen dioxide from off-gas
- Patent number 4,482,527
- Issue date Nov 13, 1984
- Hoechst Aktiengesellschaft
- Klaus Lehr
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for removing heavy metal ions and arsenic from wet-processe...
- Patent number 4,466,948
- Issue date Aug 21, 1984
- Hoechst Aktiengesellchaft
- Gunther Schimmel
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Recovery of uranium from wet-process phosphoric acid
- Patent number 4,460,549
- Issue date Jul 17, 1984
- Hoechst Aktiengesellschaft
- Gunther Schimmel
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for after-treating extraction residues originating from the...
- Patent number 4,457,848
- Issue date Jul 3, 1984
- Hoechst Aktiengesellschaft
- Gunther Schimmel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for removing heavy metal ions from wet-processed phosphoric...
- Patent number 4,452,768
- Issue date Jun 5, 1984
- Hoechst Aktiengesellschaft
- Reinhard Gradl
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for separating metals from aqueous solutions
- Patent number 4,418,043
- Issue date Nov 29, 1983
- Hoechst Aktiengesellschaft
- Klaus Lehr
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for the dearsenification of polyphosphoric acid
- Patent number 4,399,114
- Issue date Aug 16, 1983
- Hoechst Aktiengesellschaft
- Alexander Maurer
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for making long-chain ammonium polyphosphate
- Patent number 4,396,586
- Issue date Aug 2, 1983
- Hoechst Aktiengesellschaft
- Alexander Maurer
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Production of granular alkali metal diphosphates or triphosphates
- Patent number 4,394,358
- Issue date Jul 19, 1983
- Hoechst Aktiengesellschaft
- Alexander Maurer
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for separating metals from aqueous solutions
- Patent number 4,392,962
- Issue date Jul 12, 1983
- Hoechst Aktiengesellschaft
- Klaus Lehr
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for making aqueous alkali metal phosphate solutions
- Patent number 4,385,041
- Issue date May 24, 1983
- Hoechst Aktiengesellschaft
- Klaus Jodden
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the oxidation of alkali metal phosphites
- Patent number 4,368,179
- Issue date Jan 11, 1983
- Hoechst Aktiengesellschaft
- Gunther Shimmel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for removing phosphorus in vapor form and phosphanes from g...
- Patent number 4,355,010
- Issue date Oct 19, 1982
- Hoechst Aktiengesellschaft
- Klaus Jodden
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Production of an isomeric mixture of secondary phosphines
- Patent number 4,351,960
- Issue date Sep 28, 1982
- Hoechst Aktiengesellschaft
- Georg Elsner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the manufacture of finely dispersed sparingly soluble s...
- Patent number 4,346,065
- Issue date Aug 24, 1982
- Hoechst Aktiengesellschaft
- Alexander Maurer
- C01 - INORGANIC CHEMISTRY

Gero Heymer

Person

Patents Grantslast 30 patents

Aluminum nitride powder and a process for the preparation thereof

Continuous process for complete removal or organic impurities from...

Process for reducing the reactivity and improving the flow behavior...

Process for making an alkali phosphate solution

Process for dearsenifying phosphoric acid solutions

Process for making pulverulent ammonium polyphosphates stable to hy...

Process for defluorinating alkali metal phosphate solutions

Apparatus for improving the degree of graphitization of carbon blac...

Process for making manganese (II) salt solutions containing ammoniu...

Process for purifying wet-processed phosphoric acid

Process for removing organic contaminants from wet-processed phosph...

Process for removing fluorine and organic compounds from prepurifie...

Process for separating carbon black from an aqueous suspension

Process for separating gallium and indium from aqueous solutions

Process for making titanium dioxide concentrates

Process for removing nitrogen dioxide from off-gas

Process for removing heavy metal ions and arsenic from wet-processe...

Recovery of uranium from wet-process phosphoric acid

Process for after-treating extraction residues originating from the...

Process for removing heavy metal ions from wet-processed phosphoric...

Process for separating metals from aqueous solutions

Process for the dearsenification of polyphosphoric acid

Process for making long-chain ammonium polyphosphate

Production of granular alkali metal diphosphates or triphosphates

Process for separating metals from aqueous solutions

Process for making aqueous alkali metal phosphate solutions

Process for the oxidation of alkali metal phosphites

Process for removing phosphorus in vapor form and phosphanes from g...

Production of an isomeric mixture of secondary phosphines

Process for the manufacture of finely dispersed sparingly soluble s...