Inventor
WILLIAM A. HILGENBERG
Inventor
US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B62Mprimary
B62MRider propulsion of wheeled vehicles or sledges50%
F16HGearing25%
A42BHats13%
F16LPipes13%
PatentTitleYear
12,097,929Bicycle gearbox having segmented sprockets202412,060,135Bicycle gearbox having segmented sprockets202411,572,131Bicycle gearbox having segmented sprockets202311,572,135Bicycle gearbox having segmented sprockets202311,339,904Magnetic hose coupling for helmet forced air hose2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022Patents assigned to BELL SPORTS INC (1)· patent assignee history
2022–2024Based in US· patent location history
2023–2024Patents assigned to Praxis Works LLC (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| Praxis Works LLC | 4 | 2023–2024 |
| BELL SPORTS INC | 1 | 2022 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 5 | 2022–2024 |