Inventor
Elfed I. Williams
Inventor
Swansea, GB
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A62Bprimary
A62BDevices, apparatus or methods for life-saving38%
B01DSeparation23%
A41DOuterwear12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
A61BDiagnosis8%
A41HAppliances or methods for making clothes, e.g. for dress-making or for tailoring, not otherwise provided for4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
7,497,217'Method of making a filter cartridge using a thermoforming step'20097,069,931'Method of making a filtering face mask that has an exhalation valve attached thereto'20067,007,695'Manner of attaching component elements to filtration material such as may be utilized in respiratory masks'20066,959,709'Manner of attaching component elements to filtration material such as may be utilized in respiratory masks'20056,874,499'Filter element that has a thermo-formed housing around filter material'20056,604,524'Manner of attaching component elements to filtration material such as may be utilized in respiratory masks'20036,286,144'Protective garments incorporating bands of welded or adhesively-bonded elastomeric material'20016,148,817'Multi-part headband and respirator mask assembly and process for making same'20006,125,849'Respiratory masks having valves and other components attached to the mask by a printed patch of adhesive'20006,070,579'Elastomeric composite headband'20005,724,677'Multi-part headband and respirator mask assembly and process for making same'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998Patents assigned to MINNESOTA MINING & MFG (1)· patent assignee history
1998–2000Based in Llanelli, GB· patent location history
2000–2009Patents assigned to 3M INNOVATIVE PROPERTIES CO (10)· patent assignee history
2000–2006Based in Swansea, GB· patent location history
2001–2005Based in Wales, GB· patent location history
2005Based in Pontarddulais, GB· patent location history
2009Based in Dyfed, GB· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3M INNOVATIVE PROPERTIES CO | 10 | 2000–2009 |
| MINNESOTA MINING & MFG | 1 | 1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Swansea, GB | 4 | 2000–2006 |
| Llanelli, GB | 3 | 1998–2000 |
| Wales, GB | 2 | 2001–2005 |
| Dyfed, GB | 1 | 2009 |
| Pontarddulais, GB | 1 | 2005 |