Shenzhen Jinruihang Technology Co., Ltd. (深圳金瑞航科技有限公司) is a China-incorporated entity with a principal place of business in Shenzhen (per U.S. court filings: Room 204, Building 59, Vanke Donghai'an, No. 216 Huanbi Road, Shenzhen). Public corporate-registry coverage is thin; a Shenzhen registry entry under the same Chinese name shows an incorporation date of 2024, after the litigation began, so it may be a same-named but distinct company. No verified employee count, revenue, or ownership structure is publicly available. Court filings describe Jinruihang as a subsidiary of Shenzhen Root Technology Co., Ltd. and as part of the group of roughly eight affiliated PRC/Hong Kong entities that sell under the "Momcozy" brand.
Operations. Jinruihang is described in court filings as a "post-importation distributor through Amazon.com" of at least the Momcozy S12 Pro wearable breast pump, selling throughout the United States via online marketplaces under the Momcozy tradename. Momcozy (per CB Insights, founded 2017, Shenzhen, private/PE-backed, formerly Shenzhen Root Innovation Technology Co., Ltd.) sells maternal and infant-care products — wearable breast pumps (S9/S12/M1/M5/V-series), nursing bras, baby carriers, bottle-cleaning products, baby monitors, and postpartum recovery items. It is an operating consumer-products business, not a non-practicing entity.
Litigation posture. The database shows 1 case as plaintiff, 0 as defendant. That count reflects Shenzhen Root Technology Co., Ltd. et al. v. Chiaro Technology, Ltd. d/b/a Elvie (W.D. Wash., 2:23-cv-00631-KKE, filed 2023-04-28), a declaratory-judgment action filed by the Momcozy entities, including Jinruihang, after Momcozy lost an Amazon APEX neutral patent evaluation. Elvie countered with affirmative claims asserting four wearable-breast-pump patents (U.S. 11,357,893; 11,413,380; 11,806,454; 11,813,381), making Jinruihang a counterclaim defendant on the defensive side of the patent case. Venue is the Western District of Washington, not an EDTX-style plaintiff venue.
Notable context. Momcozy lost its TRO bid in May 2023; Elvie's infringement counterclaims were served August 2023. Affiliate Shenzhen Root filed IPRs against Elvie's patents (IPR2024-00953, IPR2024-01296, IPR2025-00554). The district case was stayed in April 2025 pending Chiaro's bankruptcy recognition proceeding (In re Chiaro Technology Limited, Bankr. D. Del. No. 25-10691); a stipulated consent judgment and dismissal with prejudice was filed January 5, 2026.