Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5965502 | Aqueous viscoelastic surfactant solutions for hair and skin cleaning | — | 1999-10-12 |
| 5858954 | Microemulsion cleaning compositions containing surfactant | — | 1999-01-12 |
| 5605651 | Emulsifiers for the preparation of oil-in-water emulsions of essential oils usable in cosmetics or medicine | — | 1997-02-25 |
| 5464874 | Aqueous surfactant compositions of elevated viscosity | — | 1995-11-07 |
| 5370816 | Detergent composition containing a mixture of alkyl polyglycosides | Rudolf Beck, Willi Gasber | 1994-12-06 |
| 5282987 | Carboxy ethers | Heinz Riemer, Werner Friedrich | 1994-02-01 |
| 5268126 | Emulsifiers for the preparation of aqueous polysiloxane emulsions and aqueous polysiloxane-paraffin oil emulsions with long shelf lives | — | 1993-12-07 |
| 5217637 | Aqueous hydraulic fluids for energy transfer | — | 1993-06-08 |
| 5193928 | Fluid application device with sliding sleeve cutting member | Fabian Gysin, Robert Schoenholzer | 1993-03-16 |
| 5164116 | Demulsifiers for breaking petroleum emulsions | Rudi Berkhof, Herman Kwekkeboom, Norbert Ripke | 1992-11-17 |
| 5133897 | Emulsifiers for the preparation of aqueous polysiloxane emulsions and aqueous polysiloxane-paraffin oil emulsions with long shelf lives | — | 1992-07-28 |
| 5105751 | Process for carrying out a sewing operation with a sewing machine with needle feed | Mathias Ulmen, Heinrich Bungert | 1992-04-21 |
| 5100573 | Thickened surfactant combination of alkyl oligoglycosides and carboxymethylated oxyethylates | — | 1992-03-31 |
| 5098596 | Detergent compositions containing a carboxymethylated ethoxylate with elevated viscosity | — | 1992-03-24 |
| 5068422 | Carboxy ethers | Heinz Reimer, Werner Friedrich | 1991-11-26 |
| 4985154 | Process for the extraction of crude oil from an underground deposite using surfactants | Harald Lueders | 1991-01-15 |
| 4917808 | Composition for recovery of oil by surfactant flooding with a mixture of carboxymethylated oxethylate and a sorbitan ester | — | 1990-04-17 |
| 4842067 | Process for enhanced recovery of oil from a subsurface reservoir for surfactant flooding | — | 1989-06-27 |
| 4825951 | Process for recovery of oil from a subsurface reservoir by surfactant flooding | — | 1989-05-02 |
| 4781207 | Process for the transportation of viscous oils | — | 1988-11-01 |
| 4770199 | Process for transporting heavy oils | — | 1988-09-13 |
| 4736764 | Process for transportation of viscous crude oils | — | 1988-04-12 |
| 4722396 | Process for oil recovery from subterranean reservoir rock formations | — | 1988-02-02 |
| 4705110 | Process for increasing injectability of injection wells in oil extraction by means of water flooding | — | 1987-11-10 |
| 4582138 | Method for oil recovery from reservoir rock formations | — | 1986-04-15 |