| Patents for H01G 7 - Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture (2,230) |
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| 07/26/1977 | US4037310 Method of manufacturing a homopolar electret from a foil |
| 06/21/1977 | US4030937 Ceramic dielectric material having improved temperature stability |
| 05/31/1977 | US4027074 Process for producing ferroelectric crystalline material |
| 04/05/1977 | US4016375 Vibratory diaphragm of a fluoropolymer |
| 01/04/1977 | US4001102 Electrophoresis |
| 12/21/1976 | US3998916 Isotactic polypropylene |
| 12/21/1976 | US3998523 Electro-optic ceramic material |
| 12/07/1976 | US3996495 High efficiency ballast system for electric discharge lamps |
| 11/09/1976 | US3991321 Technique for fabrication of foil electret |
| 11/09/1976 | US3990770 Electro-optic picture display and memory device |
| 10/26/1976 | US3988498 Ceramic |
| 10/12/1976 | US3985914 Method for continuously polarizing thermoplastic film |
| 09/21/1976 | USRE28971 Light modulator element |
| 08/03/1976 | US3973247 Method of writing and erasing information for electrooptic ceramic memories |
| 07/27/1976 | US3971938 Method of generating electricity from radiant energy called variable polarizability capacity generator |
| 06/29/1976 | US3967027 Stable electret retaining a high surface potential and method of making the same |
| 04/27/1976 | US3953874 Organic electronic rectifying devices |
| 04/27/1976 | US3953109 Domain switching element |
| 03/23/1976 | US3946422 Electret transducer having an electret of inorganic insulating material |
| 03/23/1976 | US3945112 Technique for fabrication of foil electret |
| 03/23/1976 | US3945099 Method and apparatus for making a surface wave transducer device |
| 03/16/1976 | US3943614 Method of polarizing high molecular weight films |
| 03/09/1976 | US3943387 Process for making a piezoelectric body |
| 03/02/1976 | US3940974 Electrically compensated sensor |
| 02/17/1976 | US3939292 Process for stable phase III potassium nitrate and articles prepared therefrom |
| 02/17/1976 | US3939252 From gadolinium oxide, molybdenum trioxide and lithium molybdate |
| 02/03/1976 | US3936146 Irregular ferroelectric element for controllable single domain |
| 01/27/1976 | US3935485 Piezoelectric key board switch |
| 01/06/1976 | US3931446 Polyvinylidene fluoride |
| 01/06/1976 | US3930982 Ferroelectric apparatus for dielectrophoresis particle extraction |