Viswanathan Panchanathan
27Patents
8h-index
19Co-inventors
72Inventor score
Filing activity: Apr 1, 1981 → May 2, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5725792A | Bonded magnet with low losses and easy saturation | Electricity | 28 | Expired |
| US5352301A | Hot pressed magnets formed from anisotropic powders | Performing Operations; Transporting | 17 | Expired |
| US6183572A | Isotropic rare earth material of high intrinsic induction | Performing Operations; Transporting | 14 | Expired |
| US5129963A | Rare earth magnet alloys with excellent hot workability | Chemistry; Metallurgy | 14 | Expired |
| US4900374A | Demagnetization of iron-neodymium-boron type permanent magnets without loss of coercivity | Electricity | 14 | Expired |
| US4410490A | Nickel and cobalt alloys which contain tungsten aand carbon and have been processed by rapid solidification process and method | Chemistry; Metallurgy | 13 | Expired |
| US5905424A | Bonded magnet made from gas atomized powders of rare earth alloy | Electricity | 11 | Expired |
| US5178692A | Anisotropic neodymium-iron-boron powder with high coercivity and method for forming same | Electricity | 11 | Expired |
| US4379720A | Nickel-aluminum-boron powders prepared by a rapid solidification process | Chemistry; Metallurgy | 8 | Expired |
| US5314548A | Fine grained anisotropic powder from melt-spun ribbons | Electricity | 7 | Expired |
| US4405368A | Iron-aluminum alloys containing boron which have been processed by rapid solidification process and method | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4473402A | Fine grained cobalt-chromium alloys containing carbides made by consolidation of amorphous powders | Chemistry; Metallurgy | 7 | Expired |
| US4395464A | Copper base alloys made using rapidly solidified powders and method | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4402745A | New iron-aluminum-copper alloys which contain boron and have been processed by rapid solidification process and method | Chemistry; Metallurgy | 6 | Expired |
| US6261387A | Rare-earth iron-boron magnet containing cerium and lanthanum | Electricity | 5 | Expired |
| US5514224A | High remanence hot pressed magnets | Electricity | 5 | Expired |
| US4404028A | Nickel base alloys which contain boron and have been processed by rapid solidification process | Chemistry; Metallurgy | 4 | Expired |
| US5433795A | Fabrication of permanent magnets without loss in magnetic properties | Electricity | 4 | Expired |
| US6074492A | Bonded Nd-Fe-B magnets without volumetric expansion defects | Electricity | 3 | Expired |
| US6136100A | Rare-earth alloy powders for magnets and process for making magnets from rare-earth alloy powders | Electricity | 3 | Expired |
| US6555018B2 | Bonded magnets made with atomized permanent magnetic powders | Performing Operations; Transporting | 3 | Expired |
| US5211766A | Anisotropic neodymium-iron-boron permanent magnets formed at reduced hot working temperatures | Electricity | 3 | Expired |
| US6277211A | Cu additions to Nd-Fe-B alloys to reduce oxygen content in the ingot and rapidly solidified ribbon | Performing Operations; Transporting | 3 | Expired |
| US6478890B2 | Isotropic rare earth material of high intrinsic induction | Performing Operations; Transporting | 2 | Expired |
| US4400212A | Cobalt-chromium alloys which contain carbon and have been processed by rapid solidification process and method | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.