News Article

41 Patents Behind Our Spray Pump Design

Sunmart holds 41 patents — 29 granted and in force, 12 applications still under examination — across spray pumps, lotion pumps, foam pumps, nasal irrigators, cream and powder dispensers and aerosol cans. The earliest of these filings dates back to 2005. Patents mean part of the mechanism was designed here, not copied. All 41 are listed below, and every number is a link to its own record on Google Patents. The same portfolio is laid out as a table on our company information page.

Of the 29 granted rights, 13 are invention patents and 16 are utility models; the 12 applications are invention filings that are published but not yet granted. Dates are the publication dates on the record, and the English titles are renderings of the filed Chinese titles.

Granted and in force (29)

Annual fees are paid and the legal status is in force on the register. These are the rights you can rely on when you specify a mechanism.

  • CN119370463B — Electronic high-security composite closure (invention, 2026-06-16)
  • CN223669452U — Lotion pump with external large-bore spring (utility model, 2025-12-16)
  • CN223669451U — Spring mechanism for an external-spring powder and lotion pump (utility model, 2025-12-16)
  • CN223467601U — Leak-proof spray can (utility model, 2025-10-24)
  • CN223467600U — Pneumatic metered cream jar (utility model, 2025-10-24)
  • CN116046363B — Automated suction test device with adjustable flow restriction (invention, 2025-08-19)
  • CN222265875U — All-plastic spray pump with temperature control (utility model, 2024-12-31)
  • CN222238277U — Squeeze-type nasal irrigator with locating structure (utility model, 2024-12-27)
  • CN221294649U — Lotion pump with captive closure that resists loosening (utility model, 2024-07-09)
  • CN221294648U — Fully enclosed leak-proof spray bottle (utility model, 2024-07-09)
  • CN110077727B — Reusable bottom-refillable spray can and its assembly method (invention, 2023-12-26)
  • CN113455802B — Cream bottle with controlled cream flow (invention, 2023-12-08)
  • CN219252958U — Dual-tube spray pump for efficient mixing (utility model, 2023-06-27)
  • CN219231043U — Triangular spray pump with child-resistant feature (utility model, 2023-06-23)
  • CN219134795U — Bottom-fill cream tube with retention feature (utility model, 2023-06-06)
  • CN219140432U — Clamping fixture for a spray pump suction tester (utility model, 2023-06-06)
  • CN219128962U — Dual-tube spray pump with automatic proportioning (utility model, 2023-06-06)
  • CN218878198U — Medical spray pump (utility model, 2023-04-18)
  • CN113058120B — Controllable electric powder insufflator for pharmaceutical use (invention, 2022-09-09)
  • CN215189820U — Cream jar with easy product access (utility model, 2021-12-17)
  • CN215213894U — Anti-contamination pump head (utility model, 2021-12-17)
  • CN110116064B — Multifunction portable invertible spray pump (invention, 2021-08-06)
  • CN110104316B — Metered manual pressure-boost pump (invention, 2021-02-12)
  • CN104043962B — Flat-tube nozzle assembly machine (invention, 2016-03-30)
  • CN100586643C — Turret cam mechanism for a spray-pump nozzle punching machine (invention, 2010-02-03)
  • CN100579715C — Assembly machine for gripping and necking metallised aluminium spray-pump shells (invention, 2010-01-13)
  • CN100579714C — Steel-ball punch type nozzle punching machine for spray-pump heads (invention, 2010-01-13)
  • CN100574975C — Edge-cam assembly machine for gripping metallised aluminium spray-pump shells (invention, 2009-12-30)
  • CN100574976C — Edge-cam turret assembly machine for gripping metallised aluminium spray-pump shells (invention, 2009-12-30)

Applications under examination (12)

Published applications, not yet granted. A published application is not an enforceable right — it shows what is in the pipeline, not what can be asserted today.

  • CN121796215A — Guard mechanism for a multi-setting pulsating nasal irrigator (application, 2026-04-07)
  • CN119329915A — Modular spray bottle (application, 2025-01-21)
  • CN117696291A — High-output lotion pump with left-right locking anti-open feature (application, 2024-03-15)
  • CN113525909A — Anti-contamination pump head (application, 2021-10-22)
  • CN110116064A — Multifunction portable invertible spray pump (application, 2019-08-13)
  • CN110104316A — Metered manual pressure-boost pump (application, 2019-08-09)
  • CN107213540A — Metered electric powder insufflator for pharmaceutical use (application, 2017-09-29)
  • CN106379637A — External-spring spray pump (application, 2017-02-08)
  • CN105771076A — Child-resistant nasal sprayer (application, 2016-07-20)
  • CN101380714A — Edge-cam assembly machine for metallised aluminium spray-pump shells (application, 2009-03-11)
  • CN101337320A — Steel-ball punch type nozzle punching machine for spray-pump heads (application, 2009-01-07)
  • CN101337321A — High-precision nozzle punching machine for spray-pump heads (application, 2009-01-07)

Where these designs end up

These designs feed directly into the production lines for screw-on fine mist sprayers, treatment pumps, foaming pumps, aluminium aerosol cans and nasal sprayers.

A patent is only worth quoting if a buyer can check it. Open any number above and you will see the assignee, the filing date, the legal status and the documents cited against it, on the record itself. The 29 granted rights and the 12 applications are all listed above, and every one of them can also be found through the Google Patents assignee search, and mainland-China readers can use the CNIPA patent search and analysis system instead. Certificate copies for any specific publication can be supplied on request.

The lines behind these designs each have a dedicated page with certifications, patents and FAQs: screw-on fine mist sprayers, treatment pumps, foaming pumps, aluminium aerosol cans and nasal sprayers.