Csl Behring L.l.c.
Doing business as Csl Behring LLC
At a glance
Employees500+
In business sinceNot reported
HeadquartersKing of Prussia, PA
US patents6
SAM.gov UEIH3WKVE9VBLY3
CAGE code07PZ8
Incorporated inDE
LEI529900IF9913E0BG2P87
Supplier designations
For Profit Organization
Self-certified by the company in its SAM.gov registration
Patents
6 US patents granted 2010–2022, 1 of them in the five years to SEP 2025.
Chemical engineering 6
- Methods of treatment using alpha-1-antitrypsin compositionsUS 11,224,643 · granted JAN 18, 2022
- Methods of treatment using alpha-1-antitrypsin compositionsUS 10,335,467 · granted JUL 2, 2019
- Methods of treatment using alpha-1-antitrypsin compositionsUS 9,950,046 · granted APR 24, 2018
- Methods of treatment using alpha-1-antitrypsin compositionsUS 9,320,783 · granted APR 26, 2016
- Alpha-1-antitrypsin compositionsUS 8,124,736 · granted FEB 28, 2012
Newest 5 shown · Granted to CSL Behring L.L.C. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Csl Behring L.l.c. | King of Prussia | PA | 500+ | LIKELY ACTIVE |
WARN Act notices
- Plant closing notice effective NOV 20, 2023 · 3 employees · Philadelphia, Philadelphia, PA
Filed with the state under the federal WARN Act · WARN Act notices feed, CC BY 4.0
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.