Inventor
Brian DORFMAN
Inventor
US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling38%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers31%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors31%
PatentTitleYear
12,404,093Gate opener for proppant container202511,867,044Proppant dispensing system202411,713,648Proppant dispensing system202311,408,247Proppant dispensing system with knife-edge gate202211,408,248Proppant dispensing system with intermediate surge hopper202211,280,158Proppant dispensing system2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2025Patents assigned to PROPPANT EXPRESS SOLUTIONS LLC (5)· patent assignee history
2022Patents assigned to DAGOSTINO MARK JOHN (1)· patent assignee history
2022Patents assigned to DAGOSTINO SCOTT JOSEPH (1)· patent assignee history
2022Patents assigned to Dorfman Brian (1)· patent assignee history
2022Patents assigned to FISHER MARC KEVIN (1)· patent assignee history
2022–2025Based in US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PROPPANT EXPRESS SOLUTIONS LLC | 5 | 2022–2025 |
| DAGOSTINO MARK JOHN | 1 | 2022 |
| DAGOSTINO SCOTT JOSEPH | 1 | 2022 |
| Dorfman Brianself | 1 | 2022 |
| FISHER MARC KEVIN | 1 | 2022 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 6 | 2022–2025 |