Klaus Lehr

Person

Hurth-Knapsack, DE

People

Patents Grantslast 30 patents

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 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
Metering device
- Patent number 4,447,400
- Issue date May 8, 1984
- Hoechst Aktiengesellschaft
- Hans-Werner Stephan
- C01 - INORGANIC CHEMISTRY
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 reducing iron in phosphoric acid solution
- Patent number 4,394,360
- Issue date Jul 19, 1983
- Hoechst Aktiengesellschaft
- Klaus Schrodter
- 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 4,392,962
- 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
Apparatus for making red phosphorus
- Patent number 4,330,504
- Issue date May 18, 1982
- Hoechst Aktiengesellschaft
- Klaus Lehr
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for making red phosphorus
- Patent number 4,273,752
- Issue date Jun 16, 1981
- Hoechst Aktiengesellschaft
- Klaus Lehr
- C01 - INORGANIC CHEMISTRY

Person

Patents Grantslast 30 patents

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

Process for removing nitrogen dioxide from off-gas

Metering device

Process for separating metals from aqueous solutions

Process for reducing iron in phosphoric acid solution

Process for separating metals from aqueous solutions

Apparatus for making red phosphorus

Process for making red phosphorus