Frederick Rieber
27Patents
11h-index
10Co-inventors
72Inventor score
Filing activity: Dec 24, 1990 → Dec 30, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5312285A | Descending ball game apparatus | Human Necessities | 73 | Expired |
| US5681170A | Electronic learning apparatus with self-adjusting level of difficulty | Physics | 40 | Expired |
| US6178978A | Children's activity and entertainment enclosure | Fixed Constructions | 31 | Expired |
| US6502819B2 | Convertible game table | Human Necessities | 27 | Expired |
| US6482096B1 | Swing ride with bubble generator | Human Necessities | 22 | Expired |
| USD522604S1 | Slide | General | 21 | Expired |
| US5133569A | Training wheel assembly for bicycle | Performing Operations; Transporting | 16 | Expired |
| USD529980S1 | Spiral slide | General | 12 | Expired |
| US6782577B2 | Knock-down quarter pipe for skateboarders, bikers and in-line skaters | Human Necessities | 11 | Expired |
| US6402662B1 | Trampoline safety pad assembly | Human Necessities | 11 | Expired |
| US5902116A | Electronic learning apparatus with self-adjusting level of difficulty | Physics | 11 | Expired |
| US8046965B2 | Partition system and method of assembling same | Fixed Constructions | 10 | Active |
| US6551192B1 | Obstacle assembly for bikes, skateboards and rollerblades | Fixed Constructions | 8 | Expired |
| US6669394B1 | Swing attachment | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7815513B2 | Enclosed slide | Human Necessities | 7 | Active |
| US6547221B1 | Knock-down grind rail for skateboards and rollerblades | Emerging Cross-Sectional Technologies | 6 | Expired |
| US11168481B2 | Louver system and method of assembling same | Fixed Constructions | 5 | Active |
| USD477045S1 | Launch ramp | General | 5 | Expired |
| US8382602B2 | Enclosed slide | Human Necessities | 4 | Active |
| USD821505S1 | Playhouse | General | 4 | Active |
| US6542613B1 | Electronic sound generator attachment for children's slides | Human Necessities | 2 | Expired |
| US9821246B2 | Play center | Physics | 1 | Active |
| US11020681B2 | Super fold playhouse | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11524218B2 | Adjustable difficulty rock hold | Human Necessities | 0 | Active |
| US11135525B2 | Accordion fold play structure with easy-up assembly device | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.