Inventor · Lino Lakes, MN, US

David M. Blomberg

45Patents
9h-index
38Co-inventors
75Inventor score

Filing activity: Aug 3, 2000 → Dec 20, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US6575165B1 Apparatus and method for breathing apparatus component coupling Human Necessities 119 Expired
USD676527S1 Unidirectional valve General 38 Active
USD795416S1 Respirator mask General 16 Active
USD795415S1 Respirator cartridge having an engagement latch General 14 Active
USD786443S1 Filter element General 12 Active
US9510626B2 Sleeve-fit respirator cartridge Human Necessities 11 Active
USD746437S1 Respirator mask having a communication grille General 11 Active
US9517367B2 Respiratory mask having a clean air inlet chamber Human Necessities 10 Active
USD757928S1 Respirator cartridge body General 9 Active
USD779674S1 Filter element having a connector General 9 Active
USD778430S1 Filter cartridge General 8 Active
US9814913B2 Respirator with floating elastomeric sleeve Human Necessities 7 Active
US8887719B2 Air filtration device having tuned air distribution system Performing Operations; Transporting 7 Active
US8899227B2 Air filtration device having subsections lacking fluid communication Performing Operations; Transporting 6 Active
USD759807S1 Respirator mask exhalation port General 6 Active
US9247788B2 Personal protective equipment strap retaining devices Emerging Cross-Sectional Technologies 4 Active
US9950202B2 Respirator negative pressure fit check devices and methods Human Necessities 4 Active
US10391338B2 Sleeve-fit respirator cartridge Human Necessities 4 Active
USD747470S1 Respirator cartridge connector General 4 Active
US9744329B2 Air filtration device having subsections lacking fluid communication Performing Operations; Transporting 3 Active
US9744328B2 Air filtration device having tuned air distribution system Performing Operations; Transporting 3 Active
USD741475S1 Respirator mask having a communication grille General 2 Active
USD754844S1 Respirator mask General 2 Active
US10765176B2 Personal protective device strap connecting buckle assembly Human Necessities 2 Active
USD684536S1 Small battery pack for powered air purifying respirator General 2 Active

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