| Clue | Source | Date |
|---|---|---|
| Single-serve coffee pods | Commuter | 23 Jan 2024 |
| *Disposable coffee pods | USA Today | 31 Jul 2023 |
| Keurig pods | LA Times Daily | 11 Mar 2023 |
| Premeasured coffee pods | Newsday | 09 Oct 2022 |
| Single-serve coffee holders | New York Times | 13 Oct 2020 |
| Keurig machine inserts | Universal | 05 Mar 2020 |
| Single-serving coffee pods | USA Today | 20 Nov 2019 |
| Single-serve coffee holders | ||
| Single-serving coffee pods |