Daniel P. Welch
24Patents
9h-index
9Co-inventors
68Inventor score
Filing activity: Jun 9, 1986 → Mar 24, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD596476S1 | Handle bar grip | General | 408 | Expired |
| US5454798A | Disposable urine bag | Human Necessities | 128 | Expired |
| US4922903A | Handle for electro-surgical blade | Electricity | 81 | Expired |
| US8697443B2 | Cell culture methods and devices utilizing gas permeable materials | Chemistry; Metallurgy | 41 | Active |
| US4688830A | Externally threaded quick connect coupling having integral fluid pressure assisted seal | Emerging Cross-Sectional Technologies | 26 | Expired |
| US9410114B2 | Cell culture methods and devices utilizing gas permeable materials | Chemistry; Metallurgy | 22 | Active |
| US7799560B2 | Compartmentalized device for cell culture, cell processing, and sample dialysis | Chemistry; Metallurgy | 22 | Expired |
| US9441192B2 | Cell culture methods and devices utilizing gas permeable materials | Chemistry; Metallurgy | 22 | Active |
| US5779964A | Method of making a male catheter | Performing Operations; Transporting | 14 | Expired |
| US5468211A | Internal ring releasing device for a vacuum constriction system | Human Necessities | 9 | Expired |
| USD563577S1 | Tail light | General | 8 | Expired |
| USD559748S1 | Handle bar | General | 7 | Expired |
| USD531553S1 | Motorcycle foot peg | General | 6 | Expired |
| USD550601S1 | Motorcycle wheel | General | 4 | Expired |
| US8999703B2 | Cell container | Chemistry; Metallurgy | 3 | Active |
| US5275587A | Applicator for external catheter and method of using same | Human Necessities | 2 | Expired |
| USRE49293E1 | Cell culture methods and devices utilizing gas permeable materials | General | 1 | Active |
| US9840692B2 | Closed system device and methods for gas permeable cell culture process | Chemistry; Metallurgy | 1 | Active |
| US11155778B2 | Closed system device and methods for gas permeable cell culture process | Chemistry; Metallurgy | 1 | Active |
| US11613725B2 | Culture methods and devices for testing | Chemistry; Metallurgy | 1 | Active |
| USRE48445E1 | Cell culture methods and devices utilizing gas permeable materials | General | 0 | Revoked |
| US11873474B2 | Closed system device and methods for gas permeable cell culture process | Chemistry; Metallurgy | 0 | Active |
| US8501468B2 | Culturing cells in a compartmentalized roller bottle | Chemistry; Metallurgy | 0 | Active |
| US11891595B2 | Culture methods and devices for testing | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.