Inventor · Elgin, IL, US

Larry D. Annis

22Patents
16h-index
10Co-inventors
78Inventor score

Filing activity: Feb 24, 1975 → Oct 11, 2010

Most-cited inventions

PatentTitleAreaCited byStatus
US4402312A Compression device Human Necessities 151 Expired
US4253449A Compression device with connection system Human Necessities 141 Expired
US4659329A Liquid drainage system Emerging Cross-Sectional Technologies 139 Expired
US4207876A Compression device with ventilated sleeve Human Necessities 106 Expired
US4202325A Compression device with improved fastening sleeve Emerging Cross-Sectional Technologies 92 Expired
US5776098A Diaphragm pump and pump mounted in a carrying case useful in breast pumping Human Necessities 89 Expired
US6257847A Diaphragm pump and pump for double-breast pumping Human Necessities 70 Expired
US6699213B1 Diaphragm pump protection device for a breastpump Human Necessities 56 Expired
US6481986B1 Vacuum adjustment mechanism particularly adapted for a breastpump Human Necessities 49 Expired
US4573983A Liquid collection system having an anti-septic member on the discharge section Human Necessities 40 Expired
US7255681B1 Diaphragm pump and pump for double-breast pumping Human Necessities 37 Expired
US7008400B2 Diaphragm pump and pump for double-breast pumping Human Necessities 31 Expired
US6997897B1 Diaphragm pump and pump for double-breast pumping Human Necessities 31 Expired
US4006334A Safety switch for power tool Electricity 23 Expired
US5556008A Soft-cup feeder Emerging Cross-Sectional Technologies 23 Expired
US6702167B2 Breastpump backpack Human Necessities 17 Expired
US8192396B2 Connector device Human Necessities 4 Active
US7824362B2 Connector device Human Necessities 3 Active
US7357782B2 Connector device Human Necessities 3 Expired
USD392038S Container General 2 Expired
US8096970B2 Diaphragm pump with prophylactic cover Mechanical Engineering; Lighting; Heating 2 Active
US3996729A Standup operated portable hand grass trimmer Human Necessities 0 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.