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Inventor

HAMMARGREN JOHN

US12 patents
⚠️ This page may combine multiple inventors who share the name “HAMMARGREN JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MEDTRONIC INC

4 patents
US5944680AAug 31, 1999

Respiratory effort detection method and apparatus

MEDTRONIC INC509 citations98
US5607385AMar 4, 1997

Device and algorithm for a combined cardiomyostimulator and a cardiac pacer-carioverter-defibrillator

MEDTRONIC INC116 citations97
US5697884ADec 16, 1997

Cardiac assist device having circadian muscle simulation

MEDTRONIC INC56 citations95
US5697952ADec 16, 1997

Cardiac assist device having muscle augementation after confirmed arrhythmia and method

MEDTRONIC INC17 citations73

SANDVIK MINING AND CONSTRUCTION TOOLS AB

4 patents
US12286842B2Apr 29, 2025

Thread pitch

SANDVIK MINING AND CONSTRUCTION TOOLS AB0 citations50
US12098599B2Sep 24, 2024

Shoulder protected drilling assembly

SANDVIK MINING AND CONSTRUCTION TOOLS AB0 citations50
US12000213B2Jun 4, 2024

Drill bit

SANDVIK MINING AND CONSTRUCTION TOOLS AB0 citations50
US12241313B2Mar 4, 2025

Connection for percussion drilling

SANDVIK MINING AND CONSTRUCTION TOOLS AB0 citations46

SANDVIK INTELLECTUAL PROPERTY

2 patents
US10626680B2Apr 21, 2020

Percussive rock drill bit with flushing grooves

SANDVIK INTELLECTUAL PROPERTY2 citations63
US9797202B2Oct 24, 2017

Drill bit for rock drilling tool, and rock drilling tool

SANDVIK INTELLECTUAL PROPERTY0 citations38

HAMMARGREN JOHN

1 patent
USD705827SMay 27, 2014

Drill bit for percussive drilling

HAMMARGREN JOHN16 citations76

SANDVIK MINING AND CONSTRUTION TOOLS AB

1 patent
US12054991B2Aug 6, 2024

Carved out drill bit

SANDVIK MINING AND CONSTRUTION TOOLS AB0 citations44