https://www.patsnap.com/resources/blog/rd-blog/risc-v-processor-design-optimization-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Computing & AI Hardware · Patent Landscape
RISC-V Processor Design Optimization Patents: Who's Filing and Where the Gaps Sit
  • 49 families, one IPC subclass. Nearly every record classifies under G06F, with almost nothing yet claimed against wireless (H04W) or therapeutic (A61P) adjacencies — a narrow, still-forming field.
  • China now files more than the US. 19 of 49 families route through the China receiving office versus 18 for the United States, a reversal from the historically US-anchored metadata-processing foundations.
  • The top citations are all one family. The four most-cited records — 81, 70, 67 and 45 citations — share the same 'Techniques for metadata processing' lineage, showing later filers building on one architecture, not several.
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49
Published Records
65%
Top-5 Share of All Records
-33%
3-Yr Growth (lag-adjusted)
CN
Leading Jurisdiction
Published byPatsnap Research··8 min readSourced from Patsnap Eureka
Overview

A narrow field still taking shape

RISC-V processor design optimization is a small but fast-moving corner of computing hardware patents. The search scope captures 49 patent families filed between 2015 and mid-2026 against branch prediction, pipeline optimization and ISA customization claim language, almost all of it classified under a single IPC subclass, G06F. That concentration is itself informative: this is not yet a field with distinct sub-clusters competing for claim space — it is one architectural core with a few emerging variants layered on top.

Filing volume has moved from a slow start in 2017 through a midpoint dip in 2022 to a peak of eight filings in 2025, the most recent complete year available. Given the roughly 18-month lag between filing and publication, the true trajectory through 2026 is understated in any chart pulled today, and the field should be read as still accelerating rather than plateauing.

Annual filings, 2017-2026 (2026 partial)
  1. 1THE CHARLES STARK DRAPER LABORATORY INC20
  2. 2THE NAT INST FOR RES IN DATA PROCESSING & AUTOMATION4
  3. 3INSPUR SUZHOU INTELLIGENT TECH CO LTD3
  4. 4THE TRUSTEES OF THE UNIV OF PENNSYLVANIA3
  5. 5SHANDONG LINGNENG ELECTRONIC TECH CO LTD2
  6. 6SHANDONG UNIV2
  7. 7SHANDONG INSPUR SCI RES INST CO LTD1
  8. 8S NISHANTH1
  9. 9K KANISHKA PREETHI1
  10. 10N J R MUNIRAJ1
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on RISC-V Processor Design Optimization covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Filing Data

Filing trends and technology composition

Filings in this scope run from 2015 through the mid-2026 cut-off, with volume still rising into the most recent complete year even after accounting for publication lag.

Filing activity is still accelerating, not plateauing

Annual filings moved from 5 in 2017 to a midpoint of 3 in 2022 before climbing to a peak of 8 in 2025 — the most recent full year on record. Because publication typically lags filing by around 18 months, the 2026 figure shown is necessarily incomplete and should not be read as a slowdown.

Filing activity is still accelerating, not plateauing024685201720182019202020212022202320248202552026Most recent year is partial — publication lag means later filings are not yet visible.

Almost the entire field sits in one IPC subclass

All 49 core records classify under G06F (electric digital data processing), with only single incidental hits landing in A61P and H04W. That concentration means the technology is defined almost entirely by processor-architecture claims rather than by application-specific overlays into other fields — the H04W and A61P hits are the exception, not an emerging trend.

Almost the entire field sits in one IPC subclassG06F · Electric digital data processi…49100.0%A61P · Therapeutic activity of compou…12.0%H04W · Wireless communication networks12.0%

Shares are the percentage of the 49 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.

Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on RISC-V Processor Design Optimization covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.

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Key Patents

The records shaping this field

Representative Filing
US20220236992A12022-07-28

RISC-V branch prediction method, device, electronic device and storage medium

INSPUR SUZHOU INTELLIGENT TECHNOLOGY CO., LTD.

A RISC-V branch prediction method and device, an electronic device and a computer readable storage medium are provided. On the basis of the prior art, the remaining jump times of the jump instruction are additionally acquired, and the single jump step length (not fixed to 1) is calculated according to the difference of remaining jump times during two consecutive jumps. Whether the target jump instruction has executed the last jump can be judged according to the single jump step length in combination with the real-time remaining jump times, so as to determine the jump times that need to be executed subsequently.Filed by Inspur Suzhou Intelligent Technology, published 2022-07-28 — illustrates the variable-step-length approach to branch prediction that distinguishes this filing from fixed-step prior art.

US20220236992A1 — patent drawing 1US20220236992A1 — patent drawing 2
View full filing
Most-cited and representative filings
#Publication no.Patent titleCitations
1US20170177368A1Techniques for metadata processing81
2US20170177367A1Techniques for metadata processing70
3US20190213322A1Techniques for metadata processing67
4US9785440B2Techniques for metadata processing45
5US20180011708A1Techniques for metadata processing44
6US10936713B2Techniques for metadata processing41
7US20190384604A1Techniques for metadata processing39
8US10235176B2Techniques for metadata processing38
9US10261794B2Techniques for metadata processing34
10US20190171457A1Techniques For Metadata Processing33

Ranking reflects citation count within the searched corpus, which favours older filings; treat it as a measure of influence on later filers rather than current commercial weight.

Each row carries its publication number; clicking a row searches Eureka by that number.

Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on RISC-V Processor Design Optimization covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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Analysis

What the filing pattern signals

Reading citation weight, filing office and recent momentum together points to a field with one settled architectural foundation and a much more open, still-forming layer of prediction and customization claims sitting above it.

Citation concentration
81, 70, 67, 45 cites
top four citations, one family

One architecture anchors the whole field

The four highest-cited records in this dataset all belong to the same 'Techniques for metadata processing' filing family. That concentration means later applicants working on RISC-V instruction handling are citing back to a single foundational approach rather than several competing ones.

Citation counts favour older filings — read this as historical influence, not current dominance.
Geographic shift
China 19 vs US 18
receiving office split

Filing volume has moved toward China

China now edges out the United States as the leading receiving office in this scope, a shift that reflects the surge of Chinese university and corporate filings on branch prediction and pipeline optimization since the early 2020s.

Europe, Singapore and PCT filings remain thin — 2 records each.
Filing momentum
5 (2017) → 8 (2025)
annual filings, peak year so far

Growth is still accelerating, not peaking

Filings dipped to a midpoint of 3 in 2022 before climbing to a peak of 8 in 2025, the most recent complete year in the dataset. Because publication lags filing by around 18 months, the true 2025-2026 volume is likely higher than currently visible.

Treat the 2026 figure in any trend chart as a floor, not a ceiling.
Claim breadth
49 of 49 in G06F
IPC subclass concentration

Claim space is almost entirely single-subclass

Every core record in this dataset classifies under G06F, with only single incidental hits elsewhere. That means the field's claim space is defined almost entirely by processor-architecture language rather than application-specific overlays.

High density here means the subclass is occupied — not that the underlying technology is settled.
Eureka AI Agent
Looking for what nobody has claimed yet?

Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to risc-v processor design optimization, with the prior art for and against each one.

Find the white space →
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on RISC-V Processor Design Optimization covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Players

Who holds the claim space

No single assignee shows filing activity in the latest tracked year, which means the current leaderboard reflects who built the foundational position earlier, not who is actively extending it right now.

Foundational pairing
3 co-filed families
strongest co-assignee link

Draper Labs and Penn anchor the metadata-processing core

The Charles Stark Draper Laboratory and University of Pennsylvania Board of Trustees pairing is the strongest co-assignee relationship in this dataset, tied to the highly-cited metadata-processing family that anchors the field's most influential claims.

This pairing shows zero filings in the latest tracked year.
China-based volume
19 China filings
leading receiving office

Chinese universities and corporates drive recent volume

Applicants including Inspur Suzhou Intelligent Technology and several Chinese universities account for the bulk of recent filings, concentrated on branch prediction and pipeline-optimization claim language rather than the earlier metadata-processing architecture.

China now exceeds US filings in this scope, 19 to 18.
Academic filers
Multiple single-family filers
long tail of entrants

A long tail of university filers with single families

Institutions such as Shandong University, University of Electronic Science and Technology of China, and Hubei University each appear with limited filing counts, reflecting a fragmented academic layer rather than sustained corporate portfolios.

Only two co-assignee pairs exist across the entire 49-family set.
🔍
Under-claimed sub-areas worth watching
Branches with filing volume but shallow or absent claim density in this dataset.
jump-count-delta branch predictionwireless-gated pipeline statesISA customization for edge RISC-V coresmetadata-tag-free prediction mechanisms
Rank all filers by momentum →
Recent-year filing momentum by assignee
AssigneeRecent yearYoY
Charles Stark Draper Laboratory, Inc.0
Inspur Suzhou Intelligent Technology Co., Ltd.0
The Trustees of the University of Pennsylvania0
Shandong Lingneng Electronic Technology Co., Ltd.0
Shandong University0
University of Electronic Science and Technology of China0
Hubei University0-100%
Shenzhen Yanjin Chuangxin Electronic Technology Co., Ltd.0-100%
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on RISC-V Processor Design Optimization covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's Next

Where to take this analysis

The trends above point to specific next questions for teams deciding where to file, license or design around existing claims.

Verify claim scope before designing around

The metadata-processing family's citation weight suggests broad influence, but only a full claims read — not the abstract — will show exactly what is enforceable.

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Track the China filing shift into 2026

With China now ahead of the US in filing volume and 2025-2026 figures still understated by publication lag, re-checking this trend in six months will sharpen the picture.

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Map the wireless and ISA-customization gaps

The near-absence of H04W-adjacent claims and the lack of a dominant ISA-customization filer both point to open claim territory worth scoping before a competitor moves first.

Explore white space in Eureka
Source: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on RISC-V Processor Design Optimization covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Frequently Asked

Questions practitioners ask about this space

Answers are grounded in the same dataset. Derived from a Patsnap search on RISC-V Processor Design Optimization covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP

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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.

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.

Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.

Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company's registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.