BTST is a full-metal writing-instrument and EDC (everyday-carry) manufacturer based in Shenzhen, China. Our own brand launched in 2023; before that, we spent decades producing OEM contract work for renowned Japanese stationery houses — metal cutting, turning and finishing. That manufacturing experience and its quality standards carry straight through to our own-brand products.
What we make
Primarily 304 stainless steel and aerospace aluminum, CNC-machined to shape
Full-magnetic closures, anodized coloring and laser engraving — an all-metal body that survives drops and daily wear
Fits widely available refills (G5/G7, miniG5): easy to buy anywhere, cheap to replace, no proprietary consumables
Engraving, custom colors and corporate gift boxes; we take corporate procurement, OEM / ODM and private-label projects
Products develop a natural patina with use — the longer you carry one, the better it fits your hand
Our products
Dog Series Pen-Carry Pen — an all-metal three-in-one: pen holder + ruler + writing pen, full-magnetic open/close, multiple pens connect end to end
Dabao Series Innovative Pen — business-luxury all-metal pen with a grid-textured grip at the mid-barrel, each pen engraved with its own unique serial code
Pu Series Pen — a proprietary 9-sided geometric form with a slim, pencil-like profile; anodized color that resists fading
Mermaid Series Pen — premium business all-metal pen with a magnetic cap and a one-piece metal clip
Lipstick Pen · Shaohua Series — an all-metal pen with a 1:1 lipstick silhouette, lipstick-class mini dimensions, eight colors
Nine-Headed Bird Premium Ballpoint — an IP collaboration drawn from the sacred bird of the Classic of Mountains and Seas; a modern, minimal all-metal ballpoint
Pu Series · Multi-Function Calendar Set — a corporate custom set: all-metal pen plus a 304/316 stainless three-in-one calendar stand (desk calendar / notepad / pen stand) with three customizable zones
Use cases
Everyday writing and journaling, business office and contract signing, study and exam preparation, gifting and commemoratives, corporate employee benefits and client thank-yous, and brand collaborations with custom IP.
Key facts
Brand founded: 2023
Location: Shenzhen, Guangdong, China
Focus: full-metal writing instruments and EDC objects (own brand + OEM/ODM)
Structure patents and designs registered in China, the EU and Japan.
2026-10-06
Whether a metal pen is worth its price comes down to three things: the material, the process, and whether the design is yours alone to make. Materials and process are covered across this journal; the third is what intellectual property decides — whether your design can simply be lifted. This page lists the registered rights we hold and, more importantly, how to verify them yourself.
Structure patent, design registrations and overseas filings — behind the archive and the mark, every one verifiable in official databases
The rights we hold
China utility model patent: ZL 2024 2 2179947.5 — "A portable pen holder and pen"; grant publication CN 223045456 U, granted 1 July 2025. Covers the portable structure combining bay and pen.
China design patent: ZL 2024 3 0566336.9 — "Pen holder"; grant publication CN 309289289 S, granted 13 May 2025. Protects the bay's form itself.
EU Registered Community Designs (RCD): 015074738-0001, 015074738-0002 (pen bay), 015086258-0001 (pen) — covering the EU single market.
Japan design registration: no. 1799449 (pen cap), registered 16 May 2025.
These numbers are not decoration — the next section shows how to check them.
Why we file both structure and design
Many assume a design patent is enough. The two protect different things. A design patent protects how it looks: change the colours, shift a bevel line, and a copier may slip past it. A utility model protects how it works: the way bay and pen combine, how the magnetic circuit is arranged — functional structures survive a reskin untouched. Two locks together: a copier must either redesign wholesale (at which point they are not copying you) or infringe (at which point you hold a clear legal handle).
The finished engraving: a traceable BTST mark on the clip — also one link in the anti-counterfeit chain
How to verify — no need to take our word
Chinese patents: CNIPA's patent search system or Google Patents — enter the number to see legal status and granted text.
EU RCD: EUIPO's eSearch — enter the registration number for drawings, holder and renewal status.
Japan designs: search the number on J-PlatPat.
We say the same to buyers in correspondence: verify first, then decide — never place an order on the strength of a PDF.
What this means for you
If you run OEM or collaborations: a factory with its own patent wall understands and respects design ownership — the design you hand over will not appear in someone else's catalogue three months later.
If you distribute: clear rights boundaries on the products you sell keep takedown and infringement risk manageable.
If you order corporate gifts: engraving and design are legally unambiguous — no "same-style" circulation undercutting your gifting programme.
IP is not just a lawyer's concern; it is part of sourcing risk control. Send the verification links to your legal or procurement team — five minutes to confirm. That is also why these numbers are printed on our site and agents.md: only numbers published openly can survive being checked.
