Hypertherm, Inc.
293Patents
222Active
293Granted
56Portfolio score
Filing activity: Oct 31, 1977 → Sep 6, 2023 · 33 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5132512A | Arc torch nozzle shield for plasma | Electricity | 115 | Expired |
| US4791268A | Arc plasma torch and method using contact starting | Electricity | 112 | Expired |
| US5897795A | Integral spring consumables for plasma arc torch using blow forward contact starting system | Electricity | 106 | Expired |
| US5695662A | Plasma arc cutting process and apparatus using an oxygen-rich gas shield | Electricity | 106 | Expired |
| US5994663A | Plasma arc torch and method using blow forward contact starting system | Electricity | 99 | Expired |
| US4902871A | Apparatus and process for cooling a plasma arc electrode | Electricity | 93 | Expired |
| US6084199A | Plasma arc torch with vented flow nozzle retainer | Electricity | 86 | Expired |
| US5886315A | Blow forward contact start plasma arc torch with distributed nozzle support | Electricity | 82 | Expired |
| US5317126A | Nozzle and method of operation for a plasma arc torch | Electricity | 81 | Expired |
| US4203022A | Method and apparatus for positioning a plasma arc cutting torch | Performing Operations; Transporting | 79 | Expired |
| US5841095A | Apparatus and method for improved assembly concentricity in a plasma arc torch | Electricity | 75 | Expired |
| US7375302B2 | Plasma arc torch having an electrode with internal passages | Electricity | 72 | Expired |
| US6365868B1 | DSP based plasma cutting system | Performing Operations; Transporting | 67 | Expired |
| US5380976A | Process for high quality plasma arc and laser cutting of stainless steel and aluminum | Performing Operations; Transporting | 67 | Expired |
| US8089025B2 | Gas-cooled plasma arc cutting torch | Electricity | 66 | Active |
| US7598473B2 | Generating discrete gas jets in plasma arc torch applications | Electricity | 65 | Active |
| US4861962A | Nozzle shield for a plasma arc torch | Electricity | 64 | Expired |
| US5396043A | Plasma arc cutting process and apparatus using an oxygen-rich gas shield | Electricity | 64 | Expired |
| US6772040B1 | Centralized control architecture for a plasma arc system | Electricity | 62 | Expired |
| US6403915B1 | Electrode for a plasma arc torch having an enhanced cooling configuration | Electricity | 62 | Expired |
| US6207923A | Plasma arc torch tip providing a substantially columnar shield flow | Electricity | 61 | Expired |
| US5597497A | Switch mechanism for operating a plasma arc torch, other tools or weapons | Electricity | 60 | Expired |
| US5170033A | Swirl ring and flow control process for a plasma arc torch | Electricity | 60 | Expired |
| US8389887B2 | Apparatus and method for a liquid cooled shield for improved piercing performance | Electricity | 58 | Active |
| US7375303B2 | Plasma arc torch having an electrode with internal passages | Electricity | 57 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.