Protecting a Proprietary Mechanism in a Custom Plastic Mold

How to Protect a Proprietary Mechanism in a Plastic Mold

When commissioning a plastic mold that incorporates a proprietary mechanism, put the key protections in writing before the order is placed. The project terms should clarify ownership, allowed use, confidentiality, access to technical files, and how design or tooling changes are authorized. Make sure the terms cover trials, samples, production, maintenance, and later support—not just the initial mold build.

Longterm’s product information describes tooling, inspection, and technical services, but does not set out intellectual-property ownership or confidentiality arrangements. Ask for project-specific written terms rather than assuming these protections are part of the listed services.

Key Points to Confirm

• Specify who owns the mechanism, mold, drawings, samples, and related design information, and state how each may be used.
• Identify who can access technical files and mechanism details, and document applicable confidentiality and disclosure limits.
• Agree on a process for submitting, reviewing, and approving design revisions or mold modifications, including their effect on samples and production.
• Confirm how these terms apply during inspection, mold maintenance, spare-parts supply, and technical support.

Separate Tooling Specifications from Protection Terms

Technical specifications describe the mold; they do not determine ownership or usage rights. Longterm lists mold bases in S50C and P20, cavity steels in 718H, 1.2738, and S136, cold- and hot-runner options, a stated precision tolerance of ±0.02 mm, and an expected mold life of 50,000–1,000,000 shots. These details may help identify the tooling covered by an agreement, but they do not establish who owns a proprietary mechanism or who may use it.

Request terms that expressly address ownership of the mechanism and tooling, permitted manufacturing and reuse, access to design information, confidentiality, and approval of revisions. Also ask how the agreement applies to mold trials, dimensional checks, pre-shipment inspection, maintenance guidance, spare parts, and online technical support. The available product information lists these services but does not describe associated ownership or confidentiality protections.

Project Scope and Supplier Information

Longterm states a minimum order quantity of one mold set and a typical delivery period of 25–40 days for this product. Its business-model descriptions include custom mold making with injection molding, high-precision tooling such as double-shot and overmold work, and mold development followed by plastic injection production. Confirm the project’s delivery schedule and production scope in the order documents, alongside the protections for the mechanism.

The company lists ISO 9001:2015 certification, number 02825Q12549R0S, for the design, manufacturing, and sales of precision molds and the sales of plastic products. Its published project examples include an Italian electronic housing mold, a French double-shot overmolding mold, a US home-appliance mold, and an Australian industrial plastic-part mold. These examples describe projects and customer feedback; they do not specify terms for protecting proprietary mechanisms.

Longterm identifies custom plastic injection tooling as one of its offerings and lists applications including consumer electronics, home appliances, automotive parts, industrial equipment, and daily consumer goods.

Protection Checklist

Frequently Asked Questions

Does Longterm’s product information guarantee intellectual-property protection?

No. The information describes mold specifications, inspection, and after-sales services, but does not state ownership, exclusivity, confidentiality, or permitted-use terms. Request written, project-specific confirmation.

Which items should the protection terms identify?

Describe the mechanism and the associated mold, drawings, samples, design revisions, and production scope. The listed materials, runner options, tolerance, and mold-life range can help identify the tooling covered by the project documents.

What inspection steps are listed for custom injection tooling?

The product information lists mold trial testing, dimensional inspection, and a full pre-shipment inspection. Descriptions of relevant services also mention sample confirmation, first-article inspection, and mold-running tests.

Recommendations Before Placing an Order

Before ordering a mold containing a proprietary mechanism, document ownership, permitted use, confidentiality, file access, and change approvals in the project agreement. Do not assume these protections are included in a mold specification or support service. Longterm lists ISO 9001:2015 certification and custom mold-making and injection-molding services. For technical solutions or support, contact rogerluo@longterm-mold.com.

About Longterm

Longterm Manufacturing Solutions Limited is a mold manufacturer founded in 2010, serving customers in the US, Europe, Australia, and other international markets. Its services include mold design, tooling, precision machining, mold manufacturing, and parts production. The company says its R&D team includes five engineers specializing in molds and precision machining, with capabilities in injection-mold structural design and manufacturing-process optimization. It lists ISO 9001:2015 certification for precision-mold design, manufacturing, and sales, and showcases work for consumer electronics, home appliances, and industrial equipment.