Delaware Capital Formation, Inc.
665Patents
180Active
665Granted
51Portfolio score
Filing activity: Sep 29, 1986 → Jun 3, 2024 · 75 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7000911B2 | Motor pack for automated machinery | Performing Operations; Transporting | 1,024 | Expired |
| US4832158A | Elevator system having microprocessor-based door operator | Physics | 879 | Expired |
| US6614392B2 | Combination RFID and GPS functionality on intelligent label | Human Necessities | 173 | Expired |
| US6181149A | Grid array package test contactor | Physics | 122 | Expired |
| US4766713A | Packaging device including dual clip attachment apparatus, a casing brake mechanism and gathering mechanism | Emerging Cross-Sectional Technologies | 85 | Expired |
| US5569383A | Filter with axially and rotatably movable wiper | Performing Operations; Transporting | 84 | Expired |
| US5161347A | Cutting device for plastic netting | Emerging Cross-Sectional Technologies | 77 | Expired |
| US5586424A | Apparatus for movement of U-shaped clips along a rail | Emerging Cross-Sectional Technologies | 77 | Expired |
| US5495701A | Clip attachment mechanism for fastening a single clip or two clips simultaneously | Emerging Cross-Sectional Technologies | 72 | Expired |
| US6386786B1 | Rotating clamp | Emerging Cross-Sectional Technologies | 67 | Expired |
| US5067313A | Packaging device with loop attachment mechanism and skin brake | Human Necessities | 67 | Expired |
| US5085036A | High speed contact sealer | Performing Operations; Transporting | 66 | Expired |
| US6066957A | Floating spring probe wireless test fixture | Electricity | 64 | Expired |
| USD565044S1 | Kiosk | General | 64 | Expired |
| US5042234A | Collagen film and netting packaging system and method | Performing Operations; Transporting | 64 | Expired |
| US5203760A | Apparatus for adjustment of the spacing of film drive assemblies in a tubular film forming device | Performing Operations; Transporting | 61 | Expired |
| US6512666B1 | High current filter feed-through capacitor | Electricity | 60 | Expired |
| US6899151B1 | Lighted supervisory system for a fuel dispensing nozzle | Performing Operations; Transporting | 60 | Expired |
| US5198111A | Filter with reciprocating cleaner unit | Performing Operations; Transporting | 58 | Expired |
| US4923055A | Safety mechanism for preventing unintended motion in traction elevators | Performing Operations; Transporting | 57 | Expired |
| US7256593B2 | Electrical contact probe with compliant internal interconnect | Physics | 57 | Active |
| US4817582A | Gas combination oven | Human Necessities | 56 | Expired |
| US4924072A | Humidity control for oven chamber | Human Necessities | 56 | Expired |
| US5165148A | Toggle clamp with locking mechanism | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5167567A | Mechanism for control of gathering plates for a double clipper apparatus | Human Necessities | 54 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.