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Patent Information & Production OptionsSelf-Folding Desk Lamp That Turns into a Phone Stand · Patent CN213237087U

Patent CN213237087U: bibliographic data, legal status, family, a plain-language reading of the claims, plus customization, US compliance points and how a manufacturing project runs.

At a glance

Patent numberCN213237087U (application CN202022488774)
TypeChina utility model (实用新型) - protects product shape and structure
Original title4D-printed light-sensitive self-folding desk lamp (一种4D打印感光自动折叠台灯)
Patent ownerShaanxi University of Science and Technology
InventorsYan Xiaojie, Li Duanling, Zhang Wencai
Filing date2020-11-02
Grant date2021-05-18
Status (China)Lapsed - terminated for non-payment of annual fees (recorded 2022-10-14)
Patent familyChinese filings only - no US, European, Japanese, PCT or other filings listed
Cited by3 later documents
SourceGoogle Patents (search for CN213237087U)

What the claims cover, in plain language

Claim 1 - a desk lamp with a lamp shade, a self-folding stem and a base; the shade sits on top of the stem and the base at its bottom. The stem is printed from a shape-memory polymer, is S-shaped and folded when not activated and unfolds when activated.

Claim 2 - the bulb in the shade is an incandescent lamp. Claim 3 - the shade and the stem are connected through an adjusting handle. Claim 4 - the handle is L-shaped: one side at the joint between shade and stem, the other perpendicular to the shade, on its back.

This is a simplified reading for orientation only. The legal scope is defined by the exact claim wording in the official Chinese document.

What this means for US production

This patent was filed only in China and has lapsed, so it no longer restricts anyone in China either. It has no US or other foreign counterpart.

Before production, keep in mind:

  • Other patents may exist. Shape-memory actuators and 4D-printed structures are an active research and patent area, and convertible lamps with phone holders are common in US design patents. Have a freedom-to-operate (FTO) search done by a US patent attorney before volume production.
  • The heat source must change. The patent relies on the warmth of an incandescent bulb; an LED lamp with a separate heater is a new design that has to be engineered and tested.

Customization and manufacturing

What can be customized

AreaOptions
StemShape-memory polymer grade and transition temperature; printed or molded; length and number of folds
HeatingHeating element in the stem, timer or button-triggered change
LightLED module, color temperature, brightness levels, dimming
Phone standLedge size and angle; optional wireless charging pad in the shade back
PowerUSB-C, plug-in adapter, rechargeable battery
FinishShade and base colors, materials, branding

Things to plan for (US market)

  • Electrical safety - UL 153 (portable electric luminaires) testing for a plug-in lamp, with a UL-listed adapter.
  • FCC Part 15 - for LED drivers and any heater controller; a wireless charging pad needs FCC authorization.
  • Battery - a rechargeable version needs UL 2054 or UL 62133 cells and UN 38.3 transport testing.
  • Surface temperature - the heated stem must stay below safe touch temperatures; this is a key test on prototypes.
  • DOE and California Title 20 - lighting efficiency rules rule out an incandescent bulb as the main light source.

How a project runs

  1. Inquiry - target price, lamp or stand priority, power source and quantity.
  2. Material trials - select the shape-memory polymer and transition temperature, test fold cycles.
  3. Prototype - working lamps with LED and heater for function and temperature tests.
  4. Pilot run - small batch with UL and FCC testing.
  5. Production - volume production, packaging and shipping.

Quantities & timeline

The shade and base need injection molds; the stem needs either a printing process qualified for volume or a mold for the shape-memory polymer, plus cycle testing of the fold. Send us your target price, features and quantity and we will reply with options.

Patent drawings

Self-Folding Desk Lamp That Turns into a Phone Stand - Patent Fig. 1
Fig. 1 - The lamp: 1 shade; 3 shape-memory stem; 4 base.
Self-Folding Desk Lamp That Turns into a Phone Stand - Patent Fig. 2
Fig. 2 - Folded state (left) and unfolded state (right).
Self-Folding Desk Lamp That Turns into a Phone Stand - Patent Fig. 3
Fig. 3 - Version with the adjusting handle (2).
Self-Folding Desk Lamp That Turns into a Phone Stand - Patent Fig. 4
Fig. 4 - Handle version, unfolded (left) and folded as a phone stand (right).

Drawings reproduced from the public patent document for reference.

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Bring this product to market

  1. ✓ Patent vetted China-only family and legal status checked
  2. 2 Product brief · now How it works, uses and options written up
  3. 3 Prototype First samples for buyers to review
  4. 4 Pilot run Small first batch for launch customers
  5. 5 Volume production Repeat orders at scale

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This page is based on the public patent document CN213237087U, assigned to Shaanxi University of Science and Technology. IP2M is an independent manufacturing service and is not affiliated with, endorsed by or licensed by the patent owner. Images marked as concept renderings are illustrations, not photos of an existing product. Patent status information is provided for reference only and is not legal advice; confirm freedom to operate for your market before production. Full disclaimer.