Tool sharpener with concave sharpening surface
US-12447573-B2 · Oct 21, 2025 · US
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Campbell Travis patents
Campbell Travis is listed as an inventor on 20 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Campbell Travis |
| Total patents | 20 |
| First publication | Dec 8, 2016 |
| Latest publication | Oct 21, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Seed spacing device for an agricultural planter and related systems and methods
US-12144282-B2 · Nov 19, 2024 · US
Sharpener with swing arm abrasive assembly
US-2024198476-A1 · Jun 20, 2024 · US
Sharpener with swing arm abrasive assembly
US-11975420-B2 · May 7, 2024 · US
Precision adjust sharpener
US-11883930-B2 · Jan 30, 2024 · US
Sharpener with swing arm abrasive assembly
US-2023094851-A1 · Mar 30, 2023 · US
Precision adjust sharpener
US-2023033060-A1 · Feb 2, 2023 · US
Sharpener with swing arm abrasive assembly
US-11554456-B1 · Jan 17, 2023 · US
Sharpener with precise adjustment capabilities
US-11498186-B2 · Nov 15, 2022 · US
Tool sharpener with concave sharpening surface
US-2022088737-A1 · Mar 24, 2022 · US
Recent patents
Latest publications not already listed above.
Sharpener with precise adjustment capabilities
US-2022088748-A1 · Mar 24, 2022 · US
Seed spacing device for an agricultural planter and related systems and methods
US-11277961-B2 · Mar 22, 2022 · US
Seed Spacing Device For An Agricultural Planter And Related Systems And Methods (send to Roger, Darin and lead Inventor)
US-2022061208-A1 · Mar 3, 2022 · US
Nut butter spread with sliced nuts and process for making the same
US-10829297-B2 · Nov 10, 2020 · US
Nut butter spread with sliced nuts and process for making the same
US-10807791-B2 · Oct 20, 2020 · US
Seed Spacing Device For An Agricultural Planter And Related Systems And Methods
US-2019246551-A1 · Aug 15, 2019 · US
Universal joint having a retainer ring
US-10156266-B2 · Dec 18, 2018 · US
Universal Joint Having a Retainer Ring
US-2018058508-A1 · Mar 1, 2018 · US
Nut butter spread with sliced nuts and process for making the same
US-2016353781-A1 · Dec 8, 2016 · US
Nut butter spread with sliced nuts and process for making the same
US-2016353780-A1 · Dec 8, 2016 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Darex Llc | 10 |
| Ag Leader Tech | 4 |
| Conagra Foods Rdm Inc | 4 |
| Arvinmeritor Technology Llc | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| A01C7/046 | 4 |
| A01C7/0445 | 4 |
| A01C7/105 | 4 |
| A01C7/16 | 4 |
| A01C7/081 | 4 |