Schwarzkopf Development Corporation
33Patents
0Active
33Granted
38Portfolio score
Filing activity: Jan 9, 1974 → Dec 3, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4423721A | Device for insertion and extraction of medullary nails | Human Necessities | 143 | Expired |
| US4101703A | Coated cemented carbide elements | Emerging Cross-Sectional Technologies | 70 | Expired |
| US4895770A | Process for the manufacture of multi-layered, coated hardmetal parts | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4522202A | Curved intramedullary lower leg spike | Human Necessities | 48 | Expired |
| US5116659A | Extrusion process and tool for the production of a blank having internal bores | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4599281A | Wearing part | Chemistry; Metallurgy | 34 | Expired |
| US3958070A | Decorative metallic articles with differently colored surface zones | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4090103A | X-ray target | Electricity | 28 | Expired |
| US4446857A | Medullary nail and process for the production thereof | Human Necessities | 26 | Expired |
| US4516255A | Rotating anode for X-ray tubes | Electricity | 25 | Expired |
| US4162338A | Coated cemented carbide elements and their manufacture | Chemistry; Metallurgy | 25 | Expired |
| US4950327A | Creep-resistant alloy of high-melting metal and process for producing the same | Chemistry; Metallurgy | 22 | Expired |
| US5049355A | Process for producing an ODS sintered alloy | Chemistry; Metallurgy | 21 | Expired |
| US4479744A | Cutting tool | Emerging Cross-Sectional Technologies | 21 | Expired |
| US3953177A | Cermet materials with metal free surface zones | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4132917A | Rotating X-ray target and method for preparing same | Electricity | 19 | Expired |
| US4029828A | X-ray target | Electricity | 18 | Expired |
| US5023043A | Actively cooled device | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4704249A | Process for producing a superconducting wire having a Chevrel phases | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4731116A | Sputter target and process for producing sputter target | Chemistry; Metallurgy | 17 | Expired |
| US4938641A | Parting tool | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4990402A | Process for the manufacture of a soldered joint | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4050127A | Clamping tool holder | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4752335A | Process for the manufacture of a target for cathodic sputtering | Performing Operations; Transporting | 14 | Expired |
| US3960604A | Device for temperature measurements | Physics | 13 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.