CPC technology class · B27
B27H — Bending WOOD OR Similar Material
Bending wood or similar material; cooperage; making wheels from wood or similar material. 30 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.
- 30
- US patents granted
- B27
- Parent CPC class
- 3
- Active assignees
- +42%
- 5-yr velocity
CPC subclass B27H — BENDING WOOD OR SIMILAR MATERIAL; COOPERAGE; MAKING WHEELS FROM WOOD OR SIMILAR MATERIAL — covers 30 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records. This subclass sits within the broader CPC class B27 (WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL), one of roughly 250 top-level technology categories in the Cooperative Patent Classification system jointly maintained by the USPTO and the European Patent Office. At the subclass level, four-character codes like B27H give the most practical resolution for tracking a specific technology domain without losing sight of adjacent filings. Every grant here has been classified by a USPTO examiner based on the technical disclosure in the patent specification.
The competitive landscape in B27H is shaped by 3 distinct companies actively filing in this space. GOODRICH CORPORATION leads with 3 patents, followed by Eagle Machinery & Supply, Inc. at 5 grants and Michael Weinig AG at 18. Concentration at the top of the leaderboard indicates whether this technology area is dominated by a handful of incumbents or fragmented across many filers — a useful signal for investors evaluating competitive moats and for product teams mapping freedom-to-operate risk.
Filing trajectory matters as much as static counts. The yearly series on this page plots grants from 2015 through 2025, highlighting whether innovation in B27H is accelerating, plateauing, or cooling. Technology areas with rising post-2020 activity often reflect emerging markets or new platform shifts, while declining filings can signal mature domains where incremental improvement has slowed. Researchers, licensing professionals, and competitive-intelligence teams use these patterns — together with the top-assignee distribution — to decide where to invest, where to license, and where to avoid entanglement. All counts on this page come directly from USPTO PatentsView and reflect US granted utility patents only.
Is B27H innovation accelerating?
US utility-patent grants per year in B27H, 2015–2025 — recent five years are up 42% versus 2015–2019.
Who leads B27H?
The 12 most active assignees in BENDING WOOD OR SIMILAR MATERIAL; COOPERAGE; MAKING WHEELS FROM WOOD OR SIMILAR MATERIAL — wider bars mean more grants
- Nanjing Forestry Univ…
NANJING FORESTRY UNIVERSITY
28 patents
- Eagle Machinery & Sup… 5
Eagle Machinery & Supply, Inc.
5 patents
- Michael Weinig
Michael Weinig AG
18 patents
What this shows Goodrich is the most active filer in B27H, holding 3 of the 30 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.
View data table
| Rank | Company | Patents in B27H |
|---|---|---|
| #1 | NANJING FORESTRY UNIVERSITY | 28 |
| #2 | Eagle Machinery & Supply, Inc. | 5 |
| #3 | Michael Weinig AG | 18 |
About This Class
CPC subclass B27H belongs to class B27.
30 patents were granted in this class between 2015 and 2025.
3 companies actively patent in this space.
Classification System
Cooperative Patent Classification (CPC) is a hierarchical patent classification system used by the USPTO and EPO.
Frequently Asked Questions
What is CPC class B27H?
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Explore the patent dataset
Read our methodology — how this data is sourced, computed, and verified.