Peter F. Theis
27Patents
15h-index
15Co-inventors
78Inventor score
Filing activity: Nov 29, 1977 → May 28, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4692817A | Programmed conversation recording system | Electricity | 134 | Expired |
| US4559416A | Telephone line activity monitor | Electricity | 69 | Expired |
| US4800583A | Overflow call handling system | Electricity | 62 | Expired |
| US4150255A | Conversational telephone call distributor | Emerging Cross-Sectional Technologies | 54 | Expired |
| US4539436A | Programmed conversation recording system | Electricity | 39 | Expired |
| US5917904A | Automatic area code detector and dialer | Electricity | 39 | Expired |
| US5642411A | Anticipatory call distributor | Electricity | 37 | Expired |
| US4328396A | Total service telephone answering system | Electricity | 33 | Expired |
| US4152547A | Selective monitor for an automatic telephone answering system | Electricity | 30 | Expired |
| US4439635A | Message delivery system | Electricity | 29 | Expired |
| US4338494A | Telephone call inventorying and sequencing system and method | Electricity | 29 | Expired |
| US4270024A | Telephone line activity monitor | Electricity | 22 | Expired |
| US4719647A | Telephone message retrieval system with improved processor and retrieval console | Electricity | 20 | Expired |
| US5301996A | Method and apparatus for directing a stream of pressurized fluid at a location forward of a wheel to improve the traction of the same | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4856050A | Telephone message retrieval system with improved message processor and retrieval console including auto-disabling playback switch | Electricity | 18 | Expired |
| US4982420A | Recording system with response categorization | Electricity | 15 | Expired |
| US5639208A | Rotary turbine and rotary compressor | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5518363A | Rotary turbine | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4747125A | Programmed conversation recording system with variable patience interval | Electricity | 10 | Expired |
| US5201028A | System for distinguishing or counting spoken itemized expressions | Electricity | 9 | Expired |
| US6870927B1 | Automatic area code detector and dialer for automatically selecting, preparing and entering supplemental information to complete an address | Electricity | 7 | Expired |
| US5315688A | System for recognizing or counting spoken itemized expressions | Electricity | 4 | Expired |
| US8469310B2 | Airfreight container and aircraft | Emerging Cross-Sectional Technologies | 4 | Active |
| US6201864A | Automatic area code detector and dialer | Electricity | 2 | Expired |
| US8434721B2 | Aircraft tank system and method for refueling an aircraft using an eration/deaeration device with a shut-off valve | Performing Operations; Transporting | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.