Inventor · Shafer, MN, US

Mark Ebbenga

18Patents

5h-index

8Co-inventors

59Inventor score

Filing activity: May 28, 1997 → Oct 29, 2021

Most-cited inventions

Patent	Title	Area	Cited by	Status
US5860485A	Grocery cart mover	Performing Operations; Transporting	50	Expired
US7179041B2	Multi-compartmental winch device	Performing Operations; Transporting	8	Expired
US8636110B2	Boat trailer mounted bow entry ladder	Fixed Constructions	8	Active
US7614608B1	Rope tensioner for winch	Performing Operations; Transporting	6	Active
US7621506B2	Multi-compartmental winch device	Performing Operations; Transporting	5	Active
US8596906B2	Retractable wheel for boat lift and other structures	Performing Operations; Transporting	4	Active
USD602674S1	Winch drum	General	3	Expired
US11260939B2	Adjustable height spring-biased support pole	Performing Operations; Transporting	2	Active
US9156667B2	Lever handle for jack	Performing Operations; Transporting	2	Active
US8607418B2	Latch for boat bow	Emerging Cross-Sectional Technologies	2	Active
US8322692B2	Device for winching	Performing Operations; Transporting	1	Active
US7422407B2	Multi-compartmental winch device	Performing Operations; Transporting	1	Active
US11554837B2	Watercraft navigation light	Mechanical Engineering; Lighting; Heating	1	Active
US7866632B2	Multi-compartmental winch device	Performing Operations; Transporting	1	Active
US12194966B1	Lock for retractable wheels used for boat lifts, docks and other structures	Performing Operations; Transporting	0	Active
US7866631B2	Rope tensioner for winch	Performing Operations; Transporting	0	Active
US12077025B2	Bracket for providing a pivoting joint	Mechanical Engineering; Lighting; Heating	0	Active
USD610772S1	Winch drum	General	0	Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.