Inventor · Port Huron, MI, US

Nathaniel E. Grace

35Patents
12h-index
7Co-inventors
74Inventor score

Filing activity: Feb 20, 2003 → Oct 24, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US6935976B1 Mechanical broadhead with sliding blades Mechanical Engineering; Lighting; Heating 63 Expired
US7278216B2 Archery bow sight Mechanical Engineering; Lighting; Heating 28 Expired
US6997827B1 Aerodynamic improvements to archery broadheads Mechanical Engineering; Lighting; Heating 28 Expired
US8449415B2 Mechanical broadhead Mechanical Engineering; Lighting; Heating 24 Active
US7597095B2 Drop-away arrow rest Mechanical Engineering; Lighting; Heating 24 Active
US8371283B2 Cable guard and guides for archery bows Mechanical Engineering; Lighting; Heating 23 Active
US8281774B2 Cam adjustment module for compound archery bow Mechanical Engineering; Lighting; Heating 21 Active
US7314419B2 Archery small game arrowhead Human Necessities 20 Active
US8449416B2 Mechanical broadhead Mechanical Engineering; Lighting; Heating 17 Active
US8784628B2 E-coating method for archery bow components Mechanical Engineering; Lighting; Heating 15 Active
US9453698B1 Parallel cam system for an archery bow Mechanical Engineering; Lighting; Heating 14 Active
US8544456B2 Adjustable draw stop for archery bows Emerging Cross-Sectional Technologies 14 Active
US8651097B2 Cable guard and guides for archery bows Mechanical Engineering; Lighting; Heating 11 Active
US8424511B2 Cable guard and guides for archery bows Mechanical Engineering; Lighting; Heating 10 Active
US10030949B1 Mechanical broadhead Mechanical Engineering; Lighting; Heating 10 Active
US8671925B2 Cam adjustment module for compound archery bow Mechanical Engineering; Lighting; Heating 9 Active
US9945648B2 Archery broadhead and related method of use Mechanical Engineering; Lighting; Heating 8 Active
US10066912B2 Broadhead matched practice field tip and related method of use Human Necessities 7 Active
US10126087B1 Archery bow axle assembly Mechanical Engineering; Lighting; Heating 6 Active
USRE40273E1 Method of manufacturing an archery broadhead with sintered components General 5 Expired
US7013772B1 Method and apparatus for arrow shaft truing Emerging Cross-Sectional Technologies 5 Expired
USD887519S1 Broadhead General 4 Active
US11536532B1 Archery bow cam spacer Mechanical Engineering; Lighting; Heating 3 Active
US11287213B1 Insulated grip and related method of installation Mechanical Engineering; Lighting; Heating 2 Active
US11015897B2 Archery training grip and related method Mechanical Engineering; Lighting; Heating 1 Active

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