PlainPatent

CPC technology class · D01

D01D - Mechanical Methods Or Apparatus In The Manufacture Of Art…

Mechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons. 2,869 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

2,869
US patents granted
#2/6
in D01
37.9%
D01 class share
+36%
5-yr velocity

The verdict

According to USPTO PatentsView, Mechanical Methods Or Apparatus In The Manufacture Of Art… ranks #324 of 670 CPC technology areas - 2,869 US patents granted since 2015, with recorded grant volume up 36% over five years.

#324
of 670 CPC technology areas
2,869
US patents granted, 2015–2025
The Procter & Gamble
leading assignee (120)
+36%
grant velocity, last 5 yrs

How D01D's grant cadence moved

Between 2020–2024, D01D recorded 1,402 grants versus 1,030 in 2015–2019 (+36% equal-window velocity). Across complete years, output peaked in 2024 at 331 grants and bottomed in 2015 at 181 (+83% peak-over-trough). Lead assignee Aladdin Manufacturing Corporation holds 1.4% of the class ; the top three share 3.4%.

Leaderboard read

D01D concentration, lead at 1.4%

Aladdin Manufacturing Corporation leads this historical grant record at 1.4% of D01D - foreign corporation assignees hold 53% of class grants (519 of 980). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
1.4%

40 of 2,869 grants

Top three share
3.4%

of the class's recorded grants

Lead over #2
11

more grants than Kimberly-Clark Worldwide, Inc.

Where D01D sits inside D01

Among 6 subclasses in D01 (Natural OR Man-made Threads OR FIBRES; Spinning), D01D ranks #2 and holds 37.9% of the parent class's 7,563 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

D01F 3,867 D01H 375 D01G 292 D01B 91 D01C 69

Rising assignees active in D01D

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 American Nano LLC 5.50x 2 → 11 company-wide · 7 in D01D
  2. #2 Octet Medical, Inc. 5.00x 1 → 5 company-wide · 6 in D01D
  3. #3 Montefibre Mae Technologies S.r.l. 4.00x 1 → 4 company-wide · 6 in D01D
  4. #4 Innovative Mechanical Engineering Technologies B.V. 4.00x 1 → 4 company-wide · 5 in D01D
  5. #5 Fitesa Simpsonville, Inc. 3.00x 3 → 9 company-wide · 10 in D01D

D01D grants by year, peak 2024 (331)

US utility-patent grants per year in D01D, 2015–2025 - recent five years are up 36% versus 2015–2019.

150200250300350 20152016201720182019202020212022202320242025 218

Who leads D01D?

The 12 most active assignees in Mechanical Methods OR Apparatus IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR Ribbons - wider bars mean more grants

patents

What this shows The Procter & Gamble is the most active filer in D01D, holding 120 of the 2,869 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 D01D
Rank Company Patents in D01D
#1 Aladdin Manufacturing Corporation 40
#2 Kimberly-Clark Worldwide, Inc. 29
#3 Lenzing Aktiengesellschaft 28
#4 REIFENHÄUSER GMBH & Co. KG Maschinenfabrik 28
#5 Kolon Industries, Inc. 27
#6 Jiangsu Hengli Chemical Fibre Co., Ltd. 22
#7 Washington University 19
#8 Tepha, Inc. 19
#9 Oerlikon Textile GmbH & Co. KG 19
#10 Amogreentech Co., Ltd. 17
#11 Merit Medical Systems, Inc. 16
#12 Acelon Chemicals AND Fiber Corporation 16
#13 Donaldson Company, Inc. 15
#14 Poly-Med, Inc. 14
#15 University OF Central Oklahoma 14
#16 Taiwan Textile Research Institute 13
#17 Cytec Industries, Inc. 12
#18 Spiber Inc. 12
#19 Cardiac Pacemakers, Inc. 11
#20 Embody, Inc. 11

Footprint here vs. claim strategy

Each dot is a leading D01D 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 D01D assignees by class footprint. Bubble size = patents in D01D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 5101520 1020304050 Patents in D01D Avg claims / patent (company-wide) Aladdin ManufacturingKimberly-clark…Lenzing Aktiengesellsc…ReifenhÄUser & Kg…Kolon IndustriesJiangsu Hengli…Washington UniversityTephaOerlikon Textile & KgAmogreentechMerit Medical SystemsAcelon Chemicals And…DonaldsonPoly-med
Top 14 D01D assignees by class footprint. Bubble size = patents in D01D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near D01D's 2,869-grant footprint

Nationwide nearest neighbors for D01D (#324 of 670 by volume ; lead share 4.2%) - not the D01 parent-class siblings above.

Nearest by grant volume

B23D 2,856 F01K 2,854 A63H 2,847 E03C 2,911

Nearest by lead-assignee share

F16P 4.2% B29L 4.1% B06B 4.1% F24D 4.1%

Questions about D01D

Which company holds the most patents in D01D?
The Procter & Gamble Company leads D01D with 120 patents (1.4% of the subclass). By PatentsView assignee type, foreign corporations account for 53% of class grants.
Which D01D assignees grew fastest recently?
Among assignees with ≥5 grants in D01D, American Nano LLC shows the highest company-wide grant multiple (5.50x: 2 grants in 2019–2021 → 11 in 2022–2024) while holding 7 patents in this subclass. Growth is company-wide, not class-only.
How does D01D compare inside parent class D01?
Inside D01 (Natural OR Man-made Threads OR FIBRES; Spinning), D01D ranks #2 of 6 subclasses by grant volume and holds 37.9% of the parent class total. The largest sibling is D01F (3,867 grants).

What to do with this data

D01D in context - here's where to go next.

  • Aladdin Manufacturing Corporation leads D01D with 40 grants in this class. See full portfolio
  • D01D ranks #324 of 670 by grant volume among all tracked CPC technology areas. See the ranking
  • Inside parent class D01, the largest sibling subclass is D01F with 3,867 grants. Explore D01F

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

Methodology - D01D figures are USPTO PatentsView granted-utility totals for this subclass (2,869 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.