AB PH, Nederman & Co.
30Patents
1Active
30Granted
34Portfolio score
Filing activity: May 23, 1985 → May 4, 2009 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD326706S | Air filter housing for use in a factory, laboratory or the like | General | 58 | Expired |
| US5106488A | Device for separating particles from flowing medium | Performing Operations; Transporting | 39 | Expired |
| USD409737S | Fan | General | 36 | Expired |
| US4661129A | Filter cleaning device | Performing Operations; Transporting | 22 | Expired |
| US6324988A | Device at rails for exhaust extraction devices | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5162017A | Device for connecting an exhaust suction hose to the exhaust pipe of a vehicle | Performing Operations; Transporting | 17 | Expired |
| USD332305S | Extraction hood for use in an extraction system to exhaust fumes from a work station | General | 14 | Expired |
| US5125939A | Filter container | Performing Operations; Transporting | 13 | Expired |
| US5409269A | Ball joint mechanism | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5527217A | Adjustable device for exhaustion and/or supply of gas | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5482505A | Arrangement for extraction of harmful gases from workplaces | Performing Operations; Transporting | 9 | Expired |
| US5518447A | Device at exhaust-gas extraction hoses | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6012978A | Device for removal of exhausts from vehicles | Performing Operations; Transporting | 6 | Expired |
| USD329081S | Mobile electrostatic air filter for use in welding projects | General | 5 | Expired |
| US5133691A | Suction hood for injurious gases | Performing Operations; Transporting | 5 | Expired |
| USD357303S | Filter for a mobile fume extractor | General | 5 | Expired |
| US6158684A | Reeling device for hoses and/or cables | Emerging Cross-Sectional Technologies | 4 | Expired |
| USD578200S1 | Hood for use when extracting gases/fumes | General | 4 | Expired |
| USD464419S1 | Suction hood | General | 3 | Expired |
| USD589133S1 | Ventilation and air conditioning equipment unit | General | 3 | Expired |
| USD463017S1 | Extraction device for polluted gases | General | 3 | Expired |
| USD575378S1 | Joint for pipes to be used in arms for extraction of gases/fumes | General | 3 | Expired |
| US7984928B2 | Safety coupling | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US5397266A | Retaining and releasing device for exhaust-gas extraction nozzle | Performing Operations; Transporting | 2 | Expired |
| USD361836S | Combined extraction and feeding articulated conduit arm unit for gas | General | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.