Intertechnique
76Patents
13Active
76Granted
41Portfolio score
Filing activity: Sep 11, 1970 → Aug 17, 2011 · 10 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5349949A | Face mask with lip, fold, and resilient spring means to improve seal | Human Necessities | 367 | Expired |
| US5488948A | Fast donning respiratory protection equipment | Human Necessities | 293 | Expired |
| US5265592A | Individual protective breathing equipment | Human Necessities | 176 | Expired |
| US5623923A | Respiratory equipment with comfort adjustment | Human Necessities | 175 | Expired |
| US6470887B1 | Protective breathing equipment with fast positioning | Human Necessities | 137 | Expired |
| US5503147A | Respiratory equipment with comfort adjustment | Human Necessities | 130 | Expired |
| US6588424B2 | Protective equipment with fast fixing head | Human Necessities | 110 | Expired |
| US4336590A | Devices for controlling gas flows | Performing Operations; Transporting | 86 | Expired |
| US4172455A | Breathing equipment for high altitude flights | Human Necessities | 79 | Expired |
| US5575278A | Individual equipment for protection against NBC attacks | Human Necessities | 77 | Expired |
| US5003632A | Device for connecting a breathing mask to a helmet | Human Necessities | 72 | Expired |
| USD304384S | Combined respiratory mask and inflatable head straps | General | 71 | Expired |
| US5891372A | Method of making a personalized helmet liner | Human Necessities | 65 | Expired |
| US5630412A | Protective equipment for the head comprising a breathing mask and an optical screen | Human Necessities | 55 | Expired |
| US6789539B2 | Dilution regulation method and device for breathing apparatus | Human Necessities | 52 | Expired |
| US5309901A | Individual protective equipment including a pressure suit and a self-contained breathing apparatus | Human Necessities | 51 | Expired |
| US5653225A | Individual protective and breathing equipment for contaminated environments | Human Necessities | 46 | Expired |
| US5318020A | Equipment for respiratory protection against pollutants | Human Necessities | 42 | Expired |
| US4577375A | Quick attachment device for harness of a piece of equipment | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5771886A | Inflatable head harness with hearing device placement | Human Necessities | 40 | Expired |
| US6039045A | Head harness for respiratory mask | Human Necessities | 34 | Expired |
| US5913307A | Breathing protection equipment with operating mode indication | Human Necessities | 31 | Expired |
| US4344144A | Apparatus for creating gas flow cycles | Human Necessities | 31 | Expired |
| US4741332A | Equipment for protecting personnel from contamination | Human Necessities | 29 | Expired |
| US5722091A | Protective equipment for the pilot of a military aircraft, and a method of personalizing the equipment | Physics | 23 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.