Birgit Potthoff-Karl
28Patents
13h-index
53Co-inventors
84Inventor score
Filing activity: Nov 20, 1989 → Feb 1, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5786313A | Use of glycine-N,N-diacetic acid derivatives as biodegradable complexing agents for alkaline earth metal ions and heavy metal ions and process for the preparation thereof | Chemistry; Metallurgy | 58 | Expired |
| US5639832A | Preparation of products of the reaction of polyaspartimide and amino acids and the use thereof | Chemistry; Metallurgy | 26 | Expired |
| US5747635A | Modified polyaspartic acids, preparation thereof and use thereof | Chemistry; Metallurgy | 26 | Expired |
| US5849950A | Preparation of glycine-N,N-diacetic acid derivatives | Chemistry; Metallurgy | 25 | Expired |
| US5658993A | Water-soluble or water-dispersible graft copolymers, the preparation thereof and the use thereof | Chemistry; Metallurgy | 23 | Expired |
| US6172028A | Detergent and tableware cleaner | Chemistry; Metallurgy | 20 | Expired |
| US5281634A | Thickened, curable molding material based on a vinyl ester resin or a vinyl ester urethane resin | Chemistry; Metallurgy | 20 | Expired |
| US5306484A | Hair setting composition | Human Necessities | 19 | Expired |
| US5981798A | Preparation of a crystalline solid from glycine-N,N-diacetic acid derivatives with sufficiently low hygroscopicity | Chemistry; Metallurgy | 19 | Expired |
| US5972508A | Microcapsules containing bleaching aids | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5548036A | Preparation of polymers of aspartic acid and their use | Chemistry; Metallurgy | 16 | Expired |
| US5122582A | Preparation of copolymers which form clear aqueous solutions | Chemistry; Metallurgy | 16 | Expired |
| US5132417A | Copolymer based on tert-butyl acrylate or methacrylate | Chemistry; Metallurgy | 14 | Expired |
| US6005141A | Use of glycine-N,N-diacetic acid derivatives as biodegradable complexing agents for alkaline earth metal ions and heavy metal ions and process for the preparation thereof | Chemistry; Metallurgy | 13 | Expired |
| US5196188A | Terpolymers, use thereof in hair setting compositions for increased stiffness, and hair setting compositions containing same | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6008176A | Use of glycine-N, N-diacetic acid derivatives as biodegradable complexing agents for alkaline earth metal ions and heavy metal ions | Chemistry; Metallurgy | 10 | Expired |
| US5994290A | Solid textile detergent formulation comprising inorganic builders, glycine-N'N-diacetic acid derivatives as organic cobuilders and anionic and nonionic surfactants | Chemistry; Metallurgy | 9 | Expired |
| US5733342A | Hydroxamic acids and hydroxamic acid ethers, and the use thereof as complexing agents | Chemistry; Metallurgy | 8 | Expired |
| US5574113A | Polycocondensates based on aspartic acid, their preparation and their use | Chemistry; Metallurgy | 8 | Expired |
| US5747619A | Water-soluble, carboxyl-containing copolymers, the preparation thereof and the use thereof as scale inhibitor | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5817864A | Process for the preparation of glycine-N, N-diacetic acid derivatives | Chemistry; Metallurgy | 7 | Expired |
| US5270357A | Thickened curable molding compound of unsaturated polyester resins | Chemistry; Metallurgy | 6 | Expired |
| US5907055A | Use of triacids based on alkoxylated tertiary amines as complexing agents | Chemistry; Metallurgy | 5 | Expired |
| US6258295A | Use of oxime esters as activators for inorganic peroxy compounds | Chemistry; Metallurgy | 2 | Expired |
| US6437181B1 | Method for producing (S,S)-N,N′-ethylenediaminedisuccinic acid, analogous compounds or salts thereof | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.