CPC technology class · B29
B29L - Indexing Scheme Associated With Subclass B29c
Indexing scheme associated with subclass b29c, relating to particular articles. 23,135 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.
- 23,135
- US patents granted
- #2/5
- in B29
- 19.9%
- B29 class share
- +9%
- 5-yr velocity
The verdict
According to USPTO PatentsView, Indexing Scheme Associated With Subclass B29c ranks #87 of 670 CPC technology areas - 23,135 US patents granted since 2015, with recorded grant volume up 9% over five years.
- #87
- of 670 CPC technology areas
- 23,135
- US patents granted, 2015–2025
- The Boeing
- leading assignee (960)
- +9%
- grant velocity, last 5 yrs
How B29L's grant cadence moved
Between 2020–2024, B29L recorded 10,810 grants versus 9,892 in 2015–2019 (+9% equal-window velocity). Across complete years, output peaked in 2019 at 2,657 grants and bottomed in 2015 at 1,346 (+97% peak-over-trough). Lead assignee The Boeing Company holds 4.1% of the class ; the top three share 6.6%.
Leaderboard read
B29L concentration, lead at 4.1%
The Boeing Company leads this historical grant record at 4.1% of B29L - foreign corporation assignees hold 53% of class grants (7,312 of 13,701). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.
- Leader's share
- 4.1%
- Top three share
- 6.6%
- Lead over #2
- 665
960 of 23,135 grants
of the class's recorded grants
more grants than Nike, Inc.
Where B29L sits inside B29
Among 5 subclasses in B29 (Working OF PLASTICS; Working OF Substances IN A Plastic State IN General), B29L ranks #2 and holds 19.9% of the parent class's 116,272 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.
Rising assignees active in B29L
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 LG Energy Solution, Ltd. 770x 2 → 1,539 company-wide · 38 in B29L
- #2 Topgolf Callaway Brands Corp. 144x 0 → 144 company-wide · 8 in B29L
- #3 Prime Planet Energy & Solutions, Inc. 92x 0 → 92 company-wide · 5 in B29L
- #4 Solventum Intellectual Properties Company 88x 0 → 88 company-wide · 7 in B29L
- #5 LM Wind Power A/S 47x 1 → 47 company-wide · 36 in B29L
B29L grants by year, peak 2019 (2,657)
US utility-patent grants per year in B29L, 2015–2025 - recent five years are up 9% versus 2015–2019.
Who leads B29L?
The 12 most active assignees in Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles - wider bars mean more grants
- The Boeing
The Boeing Company
960 patents
- Nike 295
Nike, Inc.
295 patents
- The Procter & Gamble 262
The Procter & Gamble Company
262 patents
- Airbus Operations 181
Airbus Operations Limited
181 patents
- Safran Aircraft… 114
Safran Aircraft Engines
114 patents
- Krones 114
Krones AG
114 patents
- Vestas Wind Systems… 99
Vestas Wind Systems A/S
99 patents
- Align Technology 94
Align Technology, Inc.
94 patents
- Discma 92
Discma AG
92 patents
- Airbus Operations Sas 91
Airbus Operations SAS
91 patents
- Sidel Participations S 91
Sidel Participations S.A.S
91 patents
- Abbott Cardiovascular… 88
Abbott Cardiovascular Systems, Inc.
88 patents
What this shows The Boeing is the most active filer in B29L, holding 960 of the 23,135 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 B29L |
|---|---|---|
| #1 | The Boeing Company | 960 |
| #2 | Nike, Inc. | 295 |
| #3 | The Procter & Gamble Company | 262 |
| #4 | Airbus Operations Limited | 181 |
| #5 | Safran Aircraft Engines | 114 |
| #6 | Krones AG | 114 |
| #7 | Vestas Wind Systems A/S | 99 |
| #8 | Align Technology, Inc. | 94 |
| #9 | Discma AG | 92 |
| #10 | Airbus Operations SAS | 91 |
| #11 | Sidel Participations S.A.S | 91 |
| #12 | Abbott Cardiovascular Systems, Inc. | 88 |
| #13 | Sabic Global Technologies B.V. | 86 |
| #14 | Yoshino Kogyosho Co., Ltd. | 85 |
| #15 | Nissei ASB Machine Co., Ltd. | 85 |
| #16 | Compagnie Generale DES Etablissements Michelin | 83 |
| #17 | Sumitomo Rubber Industries, Ltd. | 79 |
| #18 | Tetra Laval Holdings & Finance S.A. | 78 |
| #19 | Rohr, Inc. | 64 |
| #20 | Dai Nippon Printing Co., Ltd. | 63 |
Footprint here vs. claim strategy
Each dot is a leading B29L 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.
Classes near B29L's 23,135-grant footprint
Nationwide nearest neighbors for B29L (#87 of 670 by volume ; lead share 4.1%) - not the B29 parent-class siblings above.
Nearest by grant volume
Questions about B29L
Which company holds the most patents in B29L?
Which B29L assignees grew fastest recently?
How does B29L compare inside parent class B29?
What to do with this data
B29L in context - here's where to go next.
- The Boeing Company leads B29L with 960 grants in this class. See full portfolio
- B29L ranks #87 of 670 by grant volume among all tracked CPC technology areas. See the ranking
- Inside parent class B29, the largest sibling subclass is B29C with 53,431 grants. Explore B29C
Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.
Methodology - B29L figures are USPTO PatentsView granted-utility totals for this subclass (23,135 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.