Inventor

ENGEL RAY

US6 patents

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

ALLEGRO MICROSYSTEMS INC

2 patents

US6781359B2Aug 24, 2004

Integrated current sensor

ALLEGRO MICROSYSTEMS INC238 citations97

US7265531B2Sep 4, 2007

Integrated current sensor

ALLEGRO MICROSYSTEMS INC152 citations96

ENGEL RAY

2 patents

US8695897B2Apr 15, 2014

Showerhead with rotatable oval spray pattern and handheld spray pattern controller

ENGEL RAY21 citations89

US8177147B2May 15, 2012

Showerhead with rotatable oval spray pattern and handheld spray pattern controller

ENGEL RAY22 citations89

ALTO PRODUCTS CORP

2 patents

US11287004B1Mar 29, 2022

Graphene-based wet friction material

ALTO PRODUCTS CORP3 citations70

US12504051B1Dec 23, 2025

Dual-layered graphene-based wet friction material

ALTO PRODUCTS CORP0 citations44