Ceradyne, Inc.
🏢 View company profile →35Patents
17Active
35Granted
47Portfolio score
Filing activity: Oct 12, 1982 → Mar 17, 2014 · 11 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8622021B2 | High lifetime consumable silicon nitride-silicon dioxide plasma processing components | Electricity | 166 | Active |
| US5358402A | Ceramic orthodontic bracket with archwire slot liner | Human Necessities | 108 | Expired |
| US4824624A | Method of manufacturing boron carbide armor tiles | Emerging Cross-Sectional Technologies | 93 | Expired |
| US4954080A | Ceramic orthodontic appliance | Human Necessities | 85 | Expired |
| US6532857B1 | Ceramic array armor | Mechanical Engineering; Lighting; Heating | 83 | Expired |
| US7789010B2 | Adjustable louvered armor window system | Mechanical Engineering; Lighting; Heating | 51 | Active |
| US4739690A | Ballistic armor with spall shield containing an outer layer of plasticized resin | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5340107A | Monolithic ceramic golf club putter head and method of manufacture thereof | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4887528A | Dampening system roller for offset printing presses | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4823044A | Dispenser cathode and method of manufacture therefor | Electricity | 22 | Expired |
| US8118117B2 | Thrust bearing assembly | Mechanical Engineering; Lighting; Heating | 17 | Active |
| US4820545A | Method of bonding ceramic orthodontic appliances | Chemistry; Metallurgy | 14 | Expired |
| US4848984A | Method of making reaction bonded/hot pressed Si.sub.3 N.sub.4 for use as a cutting tool | Chemistry; Metallurgy | 13 | Expired |
| US4946630A | Making hot pressed silicon nitride by use of low density reaction bonded body | Chemistry; Metallurgy | 11 | Expired |
| US5218263A | High thermal efficiency dispenser-cathode and method of manufacture therefor | Electricity | 7 | Expired |
| US7309672B2 | Lightweight boron carbide materials with improved mechanical properties and process for their manufacture | Chemistry; Metallurgy | 6 | Expired |
| US7712550B2 | Thrust bearing assembly | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US7665954B2 | Hydrodynamic bearing runner for use in tilting pad thrust bearing assemblies for electric submersible pumps | Emerging Cross-Sectional Technologies | 5 | Active |
| US9204678B1 | Helmet retention system | Human Necessities | 5 | Active |
| US8016052B2 | Thrust bearing assembly | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US4860942A | Method for soldering void-free joints | Performing Operations; Transporting | 4 | Expired |
| US8071008B1 | Composite forming technology | Performing Operations; Transporting | 4 | Active |
| US5302328A | Making hot pressed silicon nitride by use of low density reaction bonded body | Performing Operations; Transporting | 4 | Expired |
| US8707848B2 | V-shaped blast shield for protection against IEDs | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7964296B2 | High-volume, fully dense silicon nitride monolith and method of making by simultaneously joining and hot pressing a plurality of RBSN parts | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.