Rolling Bearing Design Optimization Patent Snapshot
The patent corpus for rolling bearing design optimization is very small — 5 patent families in scope — with activity concentrated in China and filing volume only beginning to emerge after 2021. The field is nascent and fragmented, with no dominant assignee holding more than one patent record and digital simulation methods (G06F) accounting for the plurality of technical coverage.
A nascent, fragmented field with no single dominant player
Seven distinct assignees each hold one patent record, and the top five together account for 71% of the ranked applicants visible in this query’ combined total — a concentration figure that, given the tiny corpus, reflects that every filer is tied at one record rather than any single entity’s dominance.
There is no meaningful tier gap between leaders and challengers: all ranked applicants are at parity. The field has not yet consolidated around a technology platform or corporate champion.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Shanghai Renben Precision Machinery Co., Ltd. | 1 | |
| 2 | National Institute of Technology Manipur | 1 | |
| 3 | Googol Paradox (Dongguan) Intelligent Technology Co., Ltd. | 1 | |
| 4 | C&U CO LTD | 1 | |
| 5 | AVIC Harbin Bearing Co., Ltd. | 1 | |
| 6 | SHANGHAI C&U GRP CO LTD | 1 | |
| 7 | Lanzhou Jiaotong University | 1 |
The C&U / Shanghai C&U / Renben (C&U Co. Ltd, Shanghai C&U Group, and the Renben precision machinery unit) cluster represents the most coordinated presence, sharing collaborative filings, though their combined footprint remains small. AVIC Harbin Bearing and National Institute of Technology Manipur add international and state-enterprise dimensions to what is otherwise a domestically Chinese evidence snapshot.
The most recent filing years (2024–2026) are subject to publication lag and likely undercount activity; the apparent uptick in 2024–2026 should be interpreted cautiously. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity concentrated post-2022 with digital simulation as the leading technical route
Annual filing activity was zero across 2017–2021 and has only registered volume from 2022 onward, indicating this is an emerging sub-field rather than a mature technology domain. The technology mix reveals a strong digital-methods orientation alongside traditional bearing and casting classifications.
Annual filing trend
No filings appear before 2022; a single record was filed in 2022, followed by a gap in 2023, then two records in 2024, one in 2025, and one in 2026. Given publication lag, the 2025–2026 figures are preliminary and likely understate actual activity. The overall pattern indicates an early-stage field just beginning to attract structured patent protection.
↗ Hover for values · click a bar to ask EurekaTechnology composition
G06F (Electric digital data processing) is the plurality class with four patent records, reflecting that optimization work in this area is being pursued primarily through computational and simulation methods rather than purely mechanical design. F16C (Shafts, bearings and couplings) holds one record, as do B22C (Foundry moulding) and B22D (Metal casting), suggesting that manufacturing process innovation is present but secondary at this stage.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
保持架外圈引导的高速角接触球轴承
本发明公开了一种保持架外圈引导的高速角接触球轴承，引导精度高，适用于高速、振动和急加减速的工况。所述高速角接触球轴承包括：外圈、内圈、滚珠和保持架。通过外圈小内径面与保持架外径面之间形成的引导面，实现对保持架的精准引导。在外圈引导面上设置一系列与保持架旋转方向同向的人字槽，形成泵吸效应和阶梯效应，有利于保持架外径面与引导面之间形成稳定的动压润滑油膜，降低保持架与外圈之间的摩擦并抑制保持架振动，延长轴承寿命。本发明解决了传统角接触球轴承保持架与外圈引导面磨损过大、整体振动明显的难点，为角接触球轴承设计优化提供了新思路。 (excerpt from the patent abstract)
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Shanghai Renben Precision Machinery Co., Ltd.
Holds 1 patent record focused on F16C (Shafts, bearings and couplings), specifically sub-classes F16C 19 and F16C 33, indicating a conventional mechanical bearing design orientation. The entity files jointly with its parent group companies — C&U Co. Ltd and Shanghai C&U Group — giving the broader Renben cluster the most cohesive presence in the corpus. Trajectory is stable at one record; no accelerating momentum is evident.
patent records: 1Googol Paradox (Dongguan) Intelligent Technology Co., Ltd.
Holds 1 patent record with a G06F-centric focus (G06F 119, G06F 17, G06F 30 — Electric digital data processing), signaling a simulation and algorithmic optimization approach to bearing design rather than mechanical design per se. Entered as a new entrant with no prior-period filings recorded, making its trajectory entirely forward-looking. Lanzhou Jiaotong University shows an identical technical profile and new-entrant status, suggesting that the computational optimization route is attracting both industry and academic players simultaneously.
patent records: 1Frequently asked questions
The current evidence corpus contains 5 patent families in scope. This is a very small corpus, indicating the topic is at an early stage of patent activity.
All seven ranked applicants hold a single patent record each. The most coordinated presence belongs to the Renben corporate cluster — C&U Co. Ltd, Shanghai C&U Group, and Shanghai Renben Precision Machinery Co., Ltd. — which files jointly. Googol Paradox (Dongguan) Intelligent Technology, AVIC Harbin Bearing, and Lanzhou Jiaotong University are also on record as new entrants.
G06F (Electric digital data processing) accounts for four of the patent records, making computational and simulation-based optimization the visible technical route. F16C (Shafts, bearings and couplings), B22C (Foundry moulding), and B22D (Metal casting) each hold one record, indicating that mechanical design and manufacturing process approaches are present but secondary.
China accounts for four of the five patent records in scope. India holds one record, filed by the National Institute of Technology Manipur. No filings appear in the United States, Europe, Japan, or South Korea based on current evidence.
Three co-filing pairs are recorded, all within the Renben corporate family: C&U Co. Ltd with Shanghai C&U Group, C&U Co. Ltd with Shanghai Renben Precision Machinery, and Shanghai C&U Group with Shanghai Renben Precision Machinery. No cross-institutional or industry-academia co-filings appear outside this cluster.
No patent records appear before 2022. A single record was filed in 2022, none in 2023, two in 2024, one in 2025, and one in 2026. The 2025–2026 figures are subject to publication lag and likely undercount actual activity. The overall pattern is consistent with an early-stage field that has only recently begun attracting structured patent protection.
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Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
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