Benckiser-Knapsack GmbH
31Patents
0Active
31Granted
36Portfolio score
Filing activity: Dec 5, 1973 → Apr 4, 1988
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4871578A | Hydroxylapatite coating on metal or ceramic | Human Necessities | 50 | Expired |
| US4431679A | Composition for treating fish fillet to increase yield and shelf life | Human Necessities | 16 | Expired |
| US4303546A | Process of treating aqueous heating media in heating systems, and composition | Chemistry; Metallurgy | 16 | Expired |
| US4029696A | N-hydroxy alkane amino alkane diphosphonic acids, process of producing same, and compositions for and method of using same | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4098814A | N-Phosphono methylene amino alkane phosphonic acid compounds, process of producing same, and method and compositions of using same | Chemistry; Metallurgy | 15 | Expired |
| US4216163A | N-Sulfo alkane amino alkane phosphoric acids and their alkali metal salts, and a process of producing same | Chemistry; Metallurgy | 14 | Expired |
| US4487655A | Process of and composition for de-inking waste paper as well as paper reclaimed by said process | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4510068A | N-(hydroxy methyl)-1-amino alkane-1,1-diphosphonic acids as stabilizing agents in peroxide-containing bleaching baths | Chemistry; Metallurgy | 11 | Expired |
| US4517208A | Composition for treating fish to increase fish yield | Human Necessities | 11 | Expired |
| US4056430A | Process of preventing formation of resinous deposits in the manufacture of paper and the like, and compositions | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4307038A | N-Carboxy alkyl amino alkane polyphosphonic acids | Chemistry; Metallurgy | 9 | Expired |
| US4308147A | Composition and treating aqueous solutions with N-carboxy alkyl amino alkane polyphosphonic acids and their alkali metal salts | Chemistry; Metallurgy | 9 | Expired |
| US4347258A | Process for the preparation of a stable food product from lacteal components | Human Necessities | 8 | Expired |
| US4250107A | N-(Sulfoalkane) amino alkane phosphonic acids and their water-soluble salts | Chemistry; Metallurgy | 8 | Expired |
| US4752354A | Process and composition for bleaching wood pulp | Textiles; Paper | 7 | Expired |
| US4337214A | N-(Hydroxy methyl)-1-amino alkane-1,1-diphosphonic acids, process of making same, and composition for and method of using same as stabilizing agents in peroxide-containing bleaching baths | Chemistry; Metallurgy | 6 | Expired |
| US4010067A | Process of preventing formation of resinous deposits in the manufacture of paper and the like | Emerging Cross-Sectional Technologies | 5 | Expired |
| US3954401A | Agent for the treatment of cellulosic fiber materials and process | Textiles; Paper | 5 | Expired |
| US4750906A | Process for the retanning of mineral tanned leather | Chemistry; Metallurgy | 4 | Expired |
| US4755367A | Process for the preparation of coarse-particle dicalcium phosphate dihydrate | Chemistry; Metallurgy | 3 | Expired |
| US4828766A | Process for the preparation of vinyldiphosphonic acid and salts thereof | Chemistry; Metallurgy | 2 | Expired |
| US4100067A | Method for sequestering metal ions | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4029742A | Process of producing Maddrell salt | Human Necessities | 2 | Expired |
| US4261929A | Process of producing n-acylaminomethane phosphonic acids | Chemistry; Metallurgy | 1 | Expired |
| US4526582A | Method for bleaching cellulose fibers with N-(hydroxy methyl)-1-amino alkane-1,1-diphosphonic acid stabilized peroxide-containing bleaching baths | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.