Inventor

RYVCHIN LEONID

IL4 patents

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

PTC INC

2 patents

US11341288B2May 24, 2022

Methods and system for incremental exploration of design changes in large computer-aided design models

PTC INC4 citations66

US12307171B2May 20, 2025

Methods and system for incremental exploration of design changes in large computer-aided design models

PTC INC0 citations56

BUCHOWSKI JOHN CHRISTOPHER

1 patent

US8890867B2Nov 18, 2014

Methods and systems for dynamically loading portions of a computer-aided design model on demand

BUCHOWSKI JOHN CHRISTOPHER8 citations74

PARAMETRIC TECH CORP

1 patent

US7464007B2Dec 9, 2008

Flexible object representation

PARAMETRIC TECH CORP5 citations57