CPC technology class · C13
C13K - Saccharides Obtained From Natural Sources Or By Hydrolysi…
Saccharides obtained from natural sources or by hydrolysis of naturally occurring disaccharides, oligosaccharides or polysaccharides. 754 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.
- 754
- US patents granted
- #1/2
- in C13
- 81.3%
- C13 class share
- -39%
- 5-yr velocity
The verdict
According to USPTO PatentsView, Saccharides Obtained From Natural Sources Or By Hydrolysi… ranks #486 of 670 CPC technology areas - 754 US patents granted since 2015, with recorded grant volume down 39% over five years.
- #486
- of 670 CPC technology areas
- 754
- US patents granted, 2015–2025
- Xyleco
- leading assignee (69)
- -39%
- grant velocity, last 5 yrs
How C13K's grant cadence moved
Between 2020–2024, C13K recorded 257 grants versus 421 in 2015–2019 (-39% equal-window velocity). Across complete years, output peaked in 2017 at 103 grants and bottomed in 2023 at 32 (+222% peak-over-trough). Lead assignee Xyleco, Inc. holds 9.2% of the class ; the top three share 16.2%.
Leaderboard read
C13K concentration, lead at 9.2%
Xyleco, Inc. leads this historical grant record at 9.2% of C13K - us corporation assignees hold 60% of class grants (248 of 410). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.
- Leader's share
- 9.2%
- Top three share
- 16.2%
- Lead over #2
- 41
69 of 754 grants
of the class's recorded grants
more grants than Virdia, LLC
Where C13K sits inside C13
Among 2 subclasses in C13 (Sugar Industry), C13K ranks #1 and holds 81.3% of the parent class's 928 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 C13K
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 Zhejiang Huakang Pharmaceutical Co., Ltd. 7.00x 0 → 7 company-wide · 5 in C13K
- #2 Novasep Process Solutions 3.00x 0 → 3 company-wide · 5 in C13K
- #3 EPC Natural Products Co., Ltd. 2.60x 5 → 13 company-wide · 14 in C13K
- #4 Inbicon A/S 2.00x 1 → 2 company-wide · 6 in C13K
- #5 Valmet AB 1.96x 22 → 43 company-wide · 6 in C13K
C13K grants by year, peak 2017 (103)
US utility-patent grants per year in C13K, 2015–2025 - recent five years are down 39% versus 2015–2019.
Who leads C13K?
The 12 most active assignees in Saccharides Obtained From Natural Sources OR BY Hydrolysis OF Naturally Occurring Disaccharides, Oligosaccharides OR Polysaccharides - wider bars mean more grants
- Xyleco
Xyleco, Inc.
69 patents
- Virdia
Virdia, LLC
28 patents
- Shell Oil Compny 25
Shell OIL Compny
25 patents
- Novozymes A/S 22
Novozymes A/S
22 patents
- Renmatix 19
Renmatix, Inc.
19 patents
- Api Intellectual… 17
API Intellectual Property Holdings, LLC
17 patents
- Virent 14
Virent, Inc.
14 patents
- Epc Natural Products 14
EPC Natural Products Co., Ltd.
14 patents
- Granbio Intellectual… 13
Granbio Intellectual Property Holdings, LLC
13 patents
- Fluid Quip 13
Fluid Quip Technologies, LLC
13 patents
- Poet Research 9
Poet Research, Inc.
9 patents
- Beta Renewables S p A 9
Beta Renewables S.p.A.
9 patents
What this shows Xyleco is the most active filer in C13K, holding 69 of the 754 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 C13K |
|---|---|---|
| #1 | Xyleco, Inc. | 69 |
| #2 | Virdia, LLC | 28 |
| #3 | Shell OIL Compny | 25 |
| #4 | Novozymes A/S | 22 |
| #5 | Renmatix, Inc. | 19 |
| #6 | API Intellectual Property Holdings, LLC | 17 |
| #7 | Virent, Inc. | 14 |
| #8 | EPC Natural Products Co., Ltd. | 14 |
| #9 | Granbio Intellectual Property Holdings, LLC | 13 |
| #10 | Fluid Quip Technologies, LLC | 13 |
| #11 | Poet Research, Inc. | 9 |
| #12 | Beta Renewables S.p.A. | 9 |
| #13 | Dupont Nutrition Biosciences APS | 7 |
| #14 | Novozymes, Inc. | 6 |
| #15 | Valmet AB | 6 |
| #16 | Hayashibara Co., Ltd. | 6 |
| #17 | Iogen Energy Corporation | 6 |
| #18 | Inbicon A/S | 6 |
| #19 | Mitsubishi Hitachi Power Systems Environmental Solutions, Ltd. | 5 |
| #20 | Zhejiang Huakang Pharmaceutical Co., Ltd. | 5 |
Footprint here vs. claim strategy
Each dot is a leading C13K 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 C13K's 754-grant footprint
Nationwide nearest neighbors for C13K (#486 of 670 by volume ; lead share 9.2%) - not the C13 parent-class siblings above.
Questions about C13K
Which company holds the most patents in C13K?
Which C13K assignees grew fastest recently?
How does C13K compare inside parent class C13?
What to do with this data
C13K in context - here's where to go next.
- Xyleco, Inc. leads C13K with 69 grants in this class. See full portfolio
- C13K ranks #486 of 670 by grant volume among all tracked CPC technology areas. See the ranking
- Inside parent class C13, the largest sibling subclass is C13B with 174 grants. Explore C13B
Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.
Methodology - C13K figures are USPTO PatentsView granted-utility totals for this subclass (754 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.