PTI Technologies, Inc.
22Patents
7Active
22Granted
39Portfolio score
Filing activity: May 14, 1997 → Mar 28, 2022 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6006924A | Multi-media filtration system with reusable and demountable filter cartridge | Emerging Cross-Sectional Technologies | 63 | Expired |
| US6471853B1 | Prognostic health monitoring of fluidic systems using MEMS technology | Performing Operations; Transporting | 51 | Expired |
| US6736980B2 | Prognostic health monitoring of fluidic systems using MEMS technology | Performing Operations; Transporting | 39 | Expired |
| US6852216B2 | Sensing device using MEMS technology and prognostic health monitoring | Performing Operations; Transporting | 29 | Expired |
| US6936160B2 | Wireless MEMS sensing device | Performing Operations; Transporting | 26 | Expired |
| US6959819B2 | Fatigue rated glass filled plastic filter assembly incorporating a coreless plastic filter element with integral seal | Performing Operations; Transporting | 25 | Expired |
| US6823718B2 | Single-body multiple sensing device | Performing Operations; Transporting | 13 | Expired |
| US6901812B2 | Single-body dual-chip Orthogonal sensing transit-time flow device | Physics | 11 | Expired |
| US6880405B2 | Electrical/visual differential pressure indicator with solid state sensor | Physics | 9 | Expired |
| US6855249B2 | Prognostic health monitoring of fluidic systems using MEMS technology | Performing Operations; Transporting | 7 | Expired |
| US6904788B2 | Single-body multiple sensing device | Performing Operations; Transporting | 4 | Expired |
| US6908545B2 | Hydraulic filter assembly with priority valve | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6818122B2 | Dual stage filter element bypass valve | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6854339B2 | Single-body dual-chip orthogonal sensing transit-time flow device using a parabolic reflecting surface | Physics | 3 | Expired |
| US6179131A | Fusion-welded thermoplastic filter assembly and a method of fabricating the same | Performing Operations; Transporting | 1 | Expired |
| US10160647B2 | Air filter assembly | Emerging Cross-Sectional Technologies | 1 | Active |
| US11287349B2 | Burst-duct detection system | Physics | 1 | Active |
| US10442690B2 | Air filter assembly | Emerging Cross-Sectional Technologies | 1 | Active |
| US11377350B2 | Air filter assembly | Emerging Cross-Sectional Technologies | 0 | Active |
| US9427691B2 | Antimicrobial air filter | Performing Operations; Transporting | 0 | Active |
| US11788922B2 | Burst-duct detection system | Physics | 0 | Active |
| US7992723B2 | Filter cartridge with inlet flow diffuser | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.