Otto L. Hoffmann

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Shawnee, KS, US

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Patents Grantslast 30 patents

Information Patent Grant
1-Benzoyl-3-hydroxy-6(1H)-pyridazinones employed as plant growth re...
- Patent number 4,314,843
- Issue date Feb 9, 1982
- Gulf Oil Corporation
- Otto L. Hoffmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Dichloroacetylimino herbicide antagonists as plant protection agents
- Patent number 4,279,636
- Issue date Jul 21, 1981
- Gulf Oil Corporation
- Otto L. Hoffmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1-Benzoyl-3-hydroxy-6(1H)-pyridazinones and use as plant growth reg...
- Patent number 4,256,884
- Issue date Mar 17, 1981
- Gulf Oil Corporation
- Otto L. Hoffmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of protecting corn from herbicides
- Patent number 4,208,203
- Issue date Jun 17, 1980
- Gulf Research & Development Co.
- Otto L. Hoffmann
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Method of combating wild oats
- Patent number 4,134,754
- Issue date Jan 16, 1979
- Gulf Oil Corporation
- Otto L. Hoffmann
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Dichloroacetamide treated rice seeds
- Patent number 4,033,756
- Issue date Jul 5, 1977
- Gulf Research & Development Company
- Otto L. Hoffmann
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING