US 5,897,899 · Granted 1999-04-27

The Sealed Coffee Pod Patent That Launched Nespresso's Global Empire

Imagine a tiny sealed cup filled with ground coffee that doesn't need any filter or special marks to open. When you push it into a machine, pressure tears open one side of the cartridge and forces hot water through the grounds to make espresso. It's the core patent behind single-serve coffee pods.

Curated and verified by the IsItPatented Editorial team

The plain-English version

What it protects

The claim covers a sealed cartridge designed specifically for pressurized beverage extraction. What's protected here is the cup-and-cover structure where either the base or lid has a tear face that ruptures under pressure during extraction. The key innovation is that no pre-scored weakness lines or internal filter are needed—the cartridge itself is engineered to fail in a controlled way when pressure is applied, releasing the ground substance.

Why it matters

This patent became foundational to the single-serve coffee market. By eliminating the need for pre-weakened seams and internal filters, Nestec created a cartridge that was simpler to manufacture, more reliable, and tamper-proof. The design made pressurized extraction foolproof for consumers, turning capsule-based brewing into a premium category and locking competitors out of similar approaches for years.

Real-world use

Every time someone loads a Nespresso capsule into a machine and hears it puncture and brew, they're watching this exact patent technology in action.

Original USPTO abstract

A sealed cartridge, which need have no marks for weakening and inside which, no filter is needed, contains a substance, such as roasted and ground coffee, for being extracted under pressure. The cartridge has a cup having a base and a lateral wall extending from the base to a lip which extends laterally away from the wall about a cup opening, and the cartridge has a cover sealed to the lip to cover the opening. Either the cover or the base provides a tear face which is torn under stress during extraction of the substance under pressure for preparation of a beverage.

Patent details

Publication number: US 5,897,899
Filing date: 1994-02-28
Grant date: 1999-04-27
Assignee: Nestec S.A.
Inventor(s): FOND; OLIVIER
CPC class: B65D85/8043

View original record on Google Patents →

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