Castrol Limited
🏢 View company profile →117Patents
60Active
117Granted
50Portfolio score
Filing activity: Sep 24, 1974 → Oct 25, 2022 · 9 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6087310A | Skin cleaning compositions and uses comprising a polymer latex emulsion | Human Necessities | 67 | Expired |
| USD377604S | Container | General | 42 | Expired |
| US5523008A | Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them | Chemistry; Metallurgy | 41 | Expired |
| USD312210S | Container | General | 38 | Expired |
| US5663126A | Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them | Chemistry; Metallurgy | 37 | Expired |
| USD429644S | Plastic bottle | General | 31 | Expired |
| US5251725A | Lubrication of power drive comprising large diameter gear | Emerging Cross-Sectional Technologies | 29 | Expired |
| USD526203S1 | Container for lubricants | General | 27 | Expired |
| USD435451S | Container | General | 25 | Expired |
| US6187721A | Lubricant for use in diesel engines | Chemistry; Metallurgy | 24 | Expired |
| US5814586A | Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them | Chemistry; Metallurgy | 22 | Expired |
| USD919436S1 | Lubricant bottle | General | 19 | Active |
| USD324495S | Container | General | 18 | Expired |
| USD474975S1 | Container | General | 16 | Expired |
| US5874389A | Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them | Chemistry; Metallurgy | 16 | Expired |
| US4754848A | Lubrication devices | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US9878822B2 | Replaceable fluid container | Mechanical Engineering; Lighting; Heating | 15 | Active |
| US4051053A | Hydraulic fluids comprising orthosilicate esters | Chemistry; Metallurgy | 14 | Expired |
| US4141851A | Silane derivatives | Chemistry; Metallurgy | 14 | Expired |
| US9869219B2 | Apparatus and method | Mechanical Engineering; Lighting; Heating | 14 | Active |
| US6257452A | Pouring device | Performing Operations; Transporting | 13 | Expired |
| US9890901B2 | Replaceable fluid container | Mechanical Engineering; Lighting; Heating | 13 | Active |
| US6410652B1 | Processes for preparing grafted copolymers | Chemistry; Metallurgy | 13 | Expired |
| US4093554A | Hydraulic fluid compositions | Chemistry; Metallurgy | 12 | Expired |
| USD470871S1 | Mobile oil dispenser | General | 12 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.