Thomas Heidenfelder
21Patents
5h-index
47Co-inventors
65Inventor score
Filing activity: Jan 30, 2001 → Mar 26, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6387355B2 | Use of sunscreen combinations comprising, as essential constituent, amino-substituted hydroxybenzophenones as photostable UV filters in cosmetic and pharmaceutical preparations | Human Necessities | 24 | Expired |
| US6391289B2 | Use of sunscreen combinations comprising, as essential constituent, 4,4′-diarylbutadienes as photostable UV filters in cosmetic and pharmaceutical preparations | Human Necessities | 14 | Expired |
| US6416773B2 | Cosmetic or dermatological light protection agent preparations | Human Necessities | 14 | Expired |
| US6458342B1 | Use of sunscreen combinations comprising, as essential constituent, 2,2′-p-phenylenebis (3,1-benzoxazin-4-one) as photostable UV filters in cosmetic and pharmaceutical preparations | Human Necessities | 12 | Expired |
| US7638469B2 | Methods of increasing permeability in carbonatic rock formations with alkanesulfonic acids | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6488915B1 | Use of sunscreen combinations which comprise, as essential constituent, 2-(4-alkoxyanilinomethylene) malonic dialkyl esters as photostable UV filters in cosmetic and pharmaceutical preparations | Human Necessities | 3 | Expired |
| US7199181B2 | Stabilising composition II | Chemistry; Metallurgy | 2 | Expired |
| US8927669B2 | Copolymers, method for producing them and their use for treating surfaces | Emerging Cross-Sectional Technologies | 2 | Active |
| US8568522B2 | Method of passivating metallic surfaces by means of copolymers having phosphoric acid and/or phosphonic acid groups | Chemistry; Metallurgy | 2 | Active |
| US7905964B2 | Method for the passivation of metal surfaces with compositions comprising polymers with acid groups and waxes | Emerging Cross-Sectional Technologies | 2 | Active |
| US8420174B2 | Polymer composition for corrosion protection | Emerging Cross-Sectional Technologies | 2 | Active |
| US7011772B2 | UV absorbing mixture with textile fiber affinity | Textiles; Paper | 1 | Expired |
| US9540597B2 | Process for the preparation of a powder comprising one or more complexing agent salts | Chemistry; Metallurgy | 1 | Active |
| US7749337B2 | Method for the passivation of metal surfaces with polymers containing acid groups | Emerging Cross-Sectional Technologies | 1 | Active |
| US8748366B2 | Process for the preparation of a spray powder comprising one or more glycine-N,N-diacetic acid derivatives and use of the spray powder for producing compression agglomerates | Chemistry; Metallurgy | 1 | Active |
| US9487845B2 | Process for the acid digestion of metal-containing compounds | Emerging Cross-Sectional Technologies | 1 | Active |
| US8859106B2 | Use of polypeptides in the form of adhesive agents | Emerging Cross-Sectional Technologies | 0 | Active |
| US6887460B2 | Cosmetic or pharmaceutical preparations which comprise enaminotriazines as light protection agents, and novel enaminotriazines | Chemistry; Metallurgy | 0 | Expired |
| US7196135B2 | Stabilizing composition I | Chemistry; Metallurgy | 0 | Expired |
| US8785685B2 | Process for preparing aminopolycarboxylates proceeding from amino acids | Chemistry; Metallurgy | 0 | Active |
| US7217820B2 | Cosmetic or pharmaceutical preparations which comprise enaminotriazines as light protection agents, and novel enaminotriazines | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.