PlainPatent

CPC technology class · B27

B27D - Working Veneer Or Plywood

Working veneer or plywood. 200 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

200
US patents granted
#8/11
in B27
4.8%
B27 class share
+51%
5-yr velocity

The verdict

According to USPTO PatentsView, Working Veneer Or Plywood ranks #600 of 670 CPC technology areas - 200 US patents granted since 2015, with recorded grant volume up 51% over five years.

#600
of 670 CPC technology areas
200
US patents granted, 2015–2025
Homag
leading assignee (13)
+51%
grant velocity, last 5 yrs

How B27D's grant cadence moved

Between 2020–2024, B27D recorded 107 grants versus 71 in 2015–2019 (+51% equal-window velocity). Across complete years, output peaked in 2022 at 26 grants and bottomed in 2015 at 9 (+189% peak-over-trough). Lead assignee Homag GmbH holds 6.5% of the class ; the top three share 14.0%.

Leaderboard read

B27D concentration, lead at 6.5%

Homag GmbH leads this historical grant record at 6.5% of B27D - foreign corporation assignees hold 76% of class grants (76 of 100). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
6.5%

13 of 200 grants

Top three share
14.0%

of the class's recorded grants

Lead over #2
5

more grants than Homag Holzbearbeitungssysteme GmbH

Where B27D sits inside B27

Among 11 subclasses in B27 (Working OR Preserving Wood OR Similar MATERIAL; Nailing OR Stapling Machines IN General), B27D ranks #8 and holds 4.8% of the parent class's 4,149 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

B27B 1,327 B27N 750 B27G 503 B27K 387 B27M 306 B27F 238 B27C 208 B27L 168

Rising assignees active in B27D

Company-wide grant multiples (2022–2024 vs 2019–2021) among assignees with ≥5 patents in this subclass. Growth is company-wide; class patent counts are subclass-specific.

  1. #1 Meinan Machinery Works, Inc. 2.33x 3 → 7 company-wide · 7 in B27D
  2. #2 OAV Equipment AND Tools, Inc. 2.00x 3 → 6 company-wide · 7 in B27D
  3. #3 Delcotto IP, LLC 2.00x 1 → 2 company-wide · 6 in B27D
  4. #4 Masonite Corporation 0.86x 98 → 84 company-wide · 7 in B27D
  5. #5 Valinge Innovation AB 0.60x 107 → 64 company-wide · 5 in B27D

B27D grants by year, peak 2022 (26)

US utility-patent grants per year in B27D, 2015–2025 - recent five years are up 51% versus 2015–2019.

51015202530 20152016201720182019202020212022202320242025 17

Who leads B27D?

The 12 most active assignees in Working Veneer OR Plywood - wider bars mean more grants

patents

What this shows Homag is the most active filer in B27D, holding 13 of the 200 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

Source USPTO PatentsView, granted utility patents As of 2015–2025 grant years
View data table
Top patent holders in CPC subclass B27D
Rank Company Patents in B27D
#1 Homag GmbH 13
#2 Homag Holzbearbeitungssysteme GmbH 8
#3 Masonite Corporation 7
#4 Meinan Machinery Works, Inc. 7
#5 OAV Equipment AND Tools, Inc. 7
#6 Delcotto IP, LLC 6
#7 Valinge Innovation AB 5
#8 Taihei Machinery Works, Ltd. 5
#9 Boise Cascade Company 4
#10 Woodwelding AG 3
#11 VÄLINGE Innovation AB 3
#12 Nanjing Forestry University 3
#13 Flooring Technologies Ltd. 2
#14 Fritz Egger GmbH & Co. OG 2
#15 Raute Oyj 2
#16 Georgia-Pacific Wood Products LLC 2
#17 Ledermann GmbH & Co. KG 2
#18 Jowat AG 2
#19 M-Fire Holdings LLC 2
#20 M-Fire Supression, Inc. 2

Footprint here vs. claim strategy

Each dot is a leading B27D assignee, placed by how many patents it holds in this class (horizontal) against its company-wide average claims per patent (vertical) - a read on whether the class is led by broad-but-shallow filers or focused deep-claim players.

Top 14 B27D assignees by class footprint. Bubble size = patents in B27D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 0510152025 051015 Patents in B27D Avg claims / patent (company-wide) HomagHomag Holzbearbeitungs…MasoniteMeinan Machinery WorksOav Equipment And…Delcotto IpValinge Innovation AbTaihei Machinery WorksBoise CascadeWoodweldingVÄLinge Innovation AbNanjing Forestry…FlooringFritz Egger & Og
Top 14 B27D assignees by class footprint. Bubble size = patents in B27D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Questions about B27D

Which company holds the most patents in B27D?
Homag GmbH leads B27D with 13 patents (6.5% of the subclass). By PatentsView assignee type, foreign corporations account for 76% of class grants.
Which B27D assignees grew fastest recently?
Among assignees with ≥5 grants in B27D, Meinan Machinery Works, Inc. shows the highest company-wide grant multiple (2.33x: 3 grants in 2019–2021 → 7 in 2022–2024) while holding 7 patents in this subclass. Growth is company-wide, not class-only.
How does B27D compare inside parent class B27?
Inside B27 (Working OR Preserving Wood OR Similar MATERIAL; Nailing OR Stapling Machines IN General), B27D ranks #8 of 11 subclasses by grant volume and holds 4.8% of the parent class total. The largest sibling is B27B (1,327 grants).

What to do with this data

B27D in context - here's where to go next.

Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.

Methodology - B27D figures are USPTO PatentsView granted-utility totals for this subclass (200 grants in the tracked window).

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.