Vacuum pump with reduced seal requirements
US-12359665-B2 · Jul 15, 2025 · US
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Long Cainan patents
Long Cainan is listed as an inventor on 5 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Long Cainan |
| Total patents | 5 |
| First publication | Sep 15, 2022 |
| Latest publication | Jul 15, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Vacuum pump with reduced seal requirements
US-2025052241-A1 · Feb 13, 2025 · US
Non-return check valve and check valve apparatus for vacuum system
US-12085178-B2 · Sep 10, 2024 · US
Non-return check valve and check valve apparatus for vacuum system
US-2023296183-A1 · Sep 21, 2023 · US
Non-return check valve for vacuum system
US-2022290767-A1 · Sep 15, 2022 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Edwards Ltd | 5 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F16K15/04 | 3 |
| F16K25/005 | 3 |
| F16K51/02 | 3 |
| F16K27/0209 | 3 |
| H10P72/0402 | 2 |