|
| US4019994 | 28. Aug. 1975 | 26. Apr. 1977 | Georgia-Pacific Corporation | Process for the preparation of aqueous magnetic material suspensions |
| US4025448 | 29. Dez. 1975 | 24. Mai 1977 | Union Carbide Corporation | Superparamagnetic wax compositions useful in magnetic levitation separations |
| US4064453 | 2. Juli 1976 | 20. Dez. 1977 | Xerox Corporation | Magnetic field detector |
| US4078392 | 29. Dez. 1976 | 14. März 1978 | Borg-Warner Corporation | Direct contact heat transfer system using magnetic fluids |
| US4100088 | 2. Juli 1976 | 11. Juli 1978 | Xerox Corporation | Imaging composition |
| US4107063 | 2. März 1977 | 15. Aug. 1978 | International Business Machines Corporation | Water based selectable charge magnetic inks |
| US4108767 | 2. Sept. 1975 | 22. Aug. 1978 | Georgia-Pacific Corporation | Separation of an aqueous or water-miscible liquid from a fluid mixture |
| US4208294 | 12. Febr. 1979 | 17. Juni 1980 | The United States of America, as represented by the Secretary of the Interior | Dilution stable water based magnetic fluids |
| US4292615 | 24. Juli 1979 | 29. Sept. 1981 | | Switching element |
| US4315827 | 13. Febr. 1981 | 16. Febr. 1982 | Ferrofluidics Corporation | Low-vapor-pressure ferrofluids and method of making same |
| US4430239 | 7. Febr. 1983 | 7. Febr. 1984 | Ferrofluidics Corporation | Ferrofluid composition and method of making and using same |
| US4554088 | 12. Mai 1983 | 19. Nov. 1985 | Advanced Magnetics Inc. | Magnetic particles for use in separations |
| US4576725 | 13. Juni 1984 | 18. März 1986 | Toyota Jidosha Kabushiki Kaisha | Magnetic fluid incorporating fine magnetic powder and method for making the same |
| US4599184 | 29. Jan. 1985 | 8. Juli 1986 | National Research Institute | Process for producing ferromagnetic liquid |
| US4604222 | 21. Mai 1985 | 5. Aug. 1986 | Ferrofluidics Corporation | Stable ferrofluid composition and method of making and using same |
| US4604229 | 20. März 1985 | 5. Aug. 1986 | Ferrofluidics Corporation | Electrically conductive ferrofluid compositions and method of preparing and using same |
| US4608186 | 30. Juli 1985 | 26. Aug. 1986 | TDK Corporation | Magnetic fluid |
| US4624797 | 12. Sept. 1985 | 25. Nov. 1986 | TDK Corporation | Magnetic fluid and process for preparing the same |
| US4626370 | 12. Sept. 1985 | 2. Dez. 1986 | TDK Corporation | Magnetic fluid |
| US4664841 | 30. Okt. 1984 | 12. Mai 1987 | Ricoh Co., Ltd. | Fine particle substance-containing non-aqueous dispersions |
| US4687596 | 19. Juni 1986 | 18. Aug. 1987 | Ferrofluidics Corporation | Low viscosity, electrically conductive ferrofluid composition and method of making and using same |
| US4701276 | 31. Okt. 1986 | 20. Okt. 1987 | Hitachi Metals, LTD. | Super paramagnetic fluids and methods of making super paramagnetic fluids |
| US4732706 | 26. Mai 1987 | 22. März 1988 | Ferrofluidics Corporation | Method of preparing low viscosity, electrically conductive ferrofluid composition |
| US4741850 | 30. Juli 1987 | 3. Mai 1988 | Hitachi Metals, Ltd.
Consolidated Chemical Consulting Co. | Super paramagnetic fluids and methods of making super paramagnetic fluids |
| US4783150 | 26. Okt. 1987 | 8. Nov. 1988 | Commissariat a l'Energie Atomique | Thermally electrically or magnetically controllable lyotropic liquid crystal optical devices |
| US4849120 | 2. Mai 1988 | 18. Juli 1989 | | Magnetically controllable couplings containing ferrafluids |
| US4855079 | 27. Aug. 1987 | 8. Aug. 1989 | Hitachi Metals, Ltd.
Consolidated Chemical & Consulting Co. | Super paramagnetic fluids and methods of making super paramagnetic fluids |
| US4938886 | 21. Sept. 1988 | 3. Juli 1990 | SKF Nova AB | Superparamagnetic liquids and methods of making superparamagnetic liquids |
| US4946623 | 26. Okt. 1987 | 7. Aug. 1990 | Commissariat a l'Energie Atomique | Process for the production of a ferromagnetic composition, ferromagnetic liquid crystal obtained by this process and apparatus using said liquid crystal |
| US4957644 | 27. Juni 1989 | 18. Sept. 1990 | | Magnetically controllable couplings containing ferrofluids |
| US5049307 | 24. Mai 1990 | 17. Sept. 1991 | Commissariat a l'Energie Atomique | Process for the production of a ferromagnetic composition, ferromagnetic liquid crystal obtained by this process and apparatus using said liquid crystal |
| US5069216 | 19. Sept. 1989 | 3. Dez. 1991 | Advanced Magnetics Inc. | Silanized biodegradable super paramagnetic metal oxides as contrast agents for imaging the gastrointestinal tract |
| US5219554 | 31. März 1992 | 15. Juni 1993 | Advanced Magnetics, Inc. | Hydrated biodegradable superparamagnetic metal oxides |
| US5320906 | 20. Dez. 1991 | 14. Juni 1994 | Vestar, Inc. | Delivery vehicles with amphiphile-associated active ingredient |
| US5578238 | 13. Apr. 1994 | 26. Nov. 1996 | Lord Corporation | Magnetorheological materials utilizing surface-modified particles |
| US5599474 | 18. Apr. 1994 | 4. Febr. 1997 | Lord Corporation | Temperature independent magnetorheological materials |
| US5645752 | 20. Dez. 1995 | 8. Juli 1997 | Lord Corporation | Thixotropic magnetorheological materials |
| US5656196 | 15. Dez. 1994 | 12. Aug. 1997 | Ferrotec Corporation | Ferrofluid having improved oxidation resistance |
| US5670088 | 7. Juni 1995 | 23. Sept. 1997 | Ausimont S.p.A. | Preparation of mixed ultrafine particles from PFPE micro-emulsion |
| US5851416 | 12. Febr. 1997 | 22. Dez. 1998 | Ferrofluidics Corporation | Stable polysiloxane ferrofluid compositions and method of making same |
| US5879580 | 3. Dez. 1996 | 9. März 1999 | Ferrotec Corporation | Ferrofluid having improved oxidation resistance |
| US6068785 | 10. Febr. 1998 | 30. Mai 2000 | Ferrofluidics Corporation | Method for manufacturing oil-based ferrofluid |
| US6491842 | 11. Aug. 2000 | 10. Dez. 2002 | Studiengesellschaft Kohle mbH
Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V. | Anticorrosive magnetic nanocolloids protected by precious metals |
| US7208134 | 20. Dez. 2004 | 24. Apr. 2007 | Massachusetts Institute of Technology | Bioprocesses enhanced by magnetic nanoparticles |
| US7341757 | 10. Febr. 2005 | 11. März 2008 | NanoProducts Corporation | Polymer nanotechnology |
| US7387673 | 20. Mai 2003 | 17. Juni 2008 | PPG Industries Ohio, Inc. | Color pigment nanotechnology |
| US7708974 | 10. Mai 2005 | 4. Mai 2010 | PPG Industries Ohio, Inc. | Tungsten comprising nanomaterials and related nanotechnology |
| US8058337 | 12. Juni 2007 | 15. Nov. 2011 | PPG Industries Ohio, Inc. | Conductive nanocomposite films |
