Grillo-Werke AG
25Patents
3Active
25Granted
35Portfolio score
Filing activity: Jun 21, 1974 → May 23, 2019 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5240793A | Alkaline batteries containing a zinc powder with indium and bismuth | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4963629A | Copolymers of unsaturated carboxylic acids and use thereof | Chemistry; Metallurgy | 31 | Expired |
| US4172123A | Deodorants for both cosmetic and commercial use | Chemistry; Metallurgy | 28 | Expired |
| US4460543A | Process for preparation of zinc powder for alkaline batteries by amalgamation of zinc powder | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4376789A | Surfactants which are polyhydric alcohol partial esters of adducts of maleic anhydride with an unsaturated carboxylic acid | Human Necessities | 14 | Expired |
| US6071359A | Shot for use as ammunition | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6706220B1 | Mixture consisting of metal particles and/or alloy particles and of a liquid electrolytic medium and method for producing the same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6224943A | Method for improving the corrosion resistance of reinforced concrete | Chemistry; Metallurgy | 7 | Expired |
| US4376108A | Process and apparatus for reclaiming sulfur-containing waste materials | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4548642A | Process for preparing zinc powder for alkaline batteries (V) | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5191155A | Process for nonpolluting destruction of polychlorinated waste materials | Human Necessities | 6 | Expired |
| US4968496A | Deodorants and the preparation and use thereof | Human Necessities | 5 | Expired |
| US3954379A | Apparatus for continuous molding of reinforced resin profile members | Fixed Constructions | 5 | Expired |
| US6060621A | Process for the preparation of methanesulfonic acid | Chemistry; Metallurgy | 4 | Expired |
| US4454153A | Zinc salt of a hydrolyzed tricarboxylic acid from ene-adducts of maleic anhydride to undecylenic acid | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4087371A | Method of preventing incrustation on heated surfaces, and composition for the practice of the method | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US10329251B2 | Initiator for preparing alkanesulfonic acids from alkane and oleum | Chemistry; Metallurgy | 3 | Active |
| US7329828B2 | Method for inert gas welding or inert gas soldering of workpieces comprising identical or different metals or metal alloys by means of an additional Zn/Al metal | Performing Operations; Transporting | 3 | Expired |
| US4200500A | Method of preventing the adhesion of scale to the heating surfaces of a thermal desalination apparatus | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6680085B2 | Method and device for thermal spraying for the coating of surfaces | Chemistry; Metallurgy | 2 | Expired |
| US7323031B2 | Zinc powder or zinc alloy powder with inhomogeneous bulk density for alkaline batteries | Electricity | 2 | Expired |
| US6376102B1 | Thermally sprayed anticorrosion layer for reinforced concrete and method for making the preparation thereof | Emerging Cross-Sectional Technologies | 2 | Expired |
| US11634385B2 | Process for the preparation of haloalkanesulfonic acids from sulfur trioxide and a haloalkane | Chemistry; Metallurgy | 2 | Active |
| US7524582B2 | Zinc powder or zinc alloy powder for alkaline batteries | Emerging Cross-Sectional Technologies | 0 | Active |
| US7067094B2 | Process for the brightening of sodium hydrogensulfate | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.