Klaus Barthold
18Patents
8h-index
30Co-inventors
68Inventor score
Filing activity: Dec 29, 1980 → Nov 29, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5178641A | Middle distillates of crude oil having improved cold flow properties | Chemistry; Metallurgy | 17 | Expired |
| US5472617A | Method of demulsifying crude oil and water mixtures with copolymers of acrylates or methacrylates and hydrophilic commonomers | Chemistry; Metallurgy | 16 | Expired |
| US4388214A | Imidazoline based corrosion inhibitors which inhibit corrosion caused by CO.sub.2 and H.sub.2 S | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4324675A | Protective additive for radiators in coolants containing water | Chemistry; Metallurgy | 15 | Expired |
| US5393463A | Use of trialkanolamine polyethers as demulsifiers for oil-in-water emulsions | Chemistry; Metallurgy | 11 | Expired |
| US5071445A | Novel reaction products of aminoalkylene polycarboxylic acids with secondary amines and middle distillate compositions containing the aforesaid | Chemistry; Metallurgy | 9 | Expired |
| US5376155A | Mineral oil middle distillate compositions | Chemistry; Metallurgy | 9 | Expired |
| US4517114A | Inhibitors against corrosion caused by CO.sub.2 and H.sub.2 S in water-in-oil emulsions | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4814394A | Polyethers obtainable by reacting alkylolated bis-(4-hydroxyphenyl)-methanes with polyalkylene oxides, and their use as oil demulsifiers | Chemistry; Metallurgy | 8 | Expired |
| US4388213A | Cyclic amidine based corrosion inhibitors which inhibit corrosion caused by CO.sub.2 and H.sub.2 S | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4405494A | Polyhydroxy-polyalkylene-polyamine salts of maleic amide acids as corrosion inhibitors in water-in-oil emulsions | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4546151A | Oxyalkylated polyamidoamines and their preparation | Chemistry; Metallurgy | 5 | Expired |
| US4935162A | Alkoxylated amido-containing polyamines and their use for breaking oil-in-water and water-in-oil emulsions | Chemistry; Metallurgy | 5 | Expired |
| US4705834A | Crosslinked oxyalkylated polyalkylenepolyamines | Performing Operations; Transporting | 4 | Expired |
| US4436639A | Ammonium salts of polymaleic acids and use as corrosion inhibitors in water-in-oil emulsions | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4675348A | Process for optimizing the properties of aqueous polymer solutions used in polymer flooding | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5282872A | Fuel for Otto-cycle engines | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US5663435A | Reaction products of aminoalkylenecarboxylic acids and mineral oil middle distillates which contain them | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.