Simco Holdings, Inc.
27Patents
1Active
27Granted
35Portfolio score
Filing activity: Apr 30, 1974 → Sep 1, 2011
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4558309A | Ground tether continuity monitor | Physics | 53 | Expired |
| US4475141A | Body electrical grounding tether | Emerging Cross-Sectional Technologies | 50 | Expired |
| US4991689A | Safety restraint device | Human Necessities | 38 | Expired |
| US4872083A | Method and circuit for balance control of positive and negative ions from electrical A.C. air ionizers | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4734580A | Built-in ionizing electrode cleaning apparatus | Electricity | 29 | Expired |
| US4040568A | Dispenser for vaporizable material accentuated by ambient air flow | Human Necessities | 27 | Expired |
| US4216518A | Capacitively coupled static eliminator with high voltage shield | Electricity | 27 | Expired |
| US4092543A | Electrostatic neutralizer with balanced ion emission | Electricity | 26 | Expired |
| US3940884A | Moisture retainable soil covering with integral fertilizing capabilities | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5017876A | Corona current monitoring apparatus and circuitry for A.C. air ionizers including capacitive current elimination | Physics | 24 | Expired |
| US4716371A | Non-contact autoranging electrostatic fieldmeter with automatic distance indicator | Physics | 24 | Expired |
| US4423462A | Controlled emission static bar | Electricity | 19 | Expired |
| US4091371A | Touch-responsive portable intrusion alarm | Physics | 18 | Expired |
| US4188530A | Light-shielded extended-range static eliminator | Electricity | 13 | Expired |
| US5843328A | Nylon fiber protective finishing compositions and methods of manufacturing same | Emerging Cross-Sectional Technologies | 11 | Expired |
| US3931948A | Suspension holders for containers and other articles and blanks for forming the same | Performing Operations; Transporting | 10 | Expired |
| US6059978A | Method of removing colorants from wastewater | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5925149A | Method for dyeing nylon fabrics in multiple colors | Textiles; Paper | 6 | Expired |
| US4860159A | Tape dispenser with static neutralizer | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4529940A | Panoramic electrostatic field sensor | Physics | 6 | Expired |
| US4665462A | Ionizing gas gun for balanced static elimination | Electricity | 5 | Expired |
| US6814758B1 | Process for protecting dyed nylon fibers from colorants and chemical agents | Textiles; Paper | 5 | Expired |
| USRE30657E | Balanced botanical growth container | General | 5 | Expired |
| US4774472A | Apparatus for method to test efficiency of air ionizers and method for determining ability of an air ionizer to sustain a potential difference between an isolated object and a reference potential | Physics | 4 | Expired |
| US3961446A | Balanced botanical growth container | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.