Langer Name Meaning. German, Dutch, Danish, and Jewish (Ashkenazic): nickname for a tall man, from an inflected form of Lang. According to Gottschald, in the Franconian dialect of German this was also a term for an unskilled laborer (more fully, Handlanger).
Muscle does not weigh more than fat, any more than lead weighs more than feathers. A pound is a pound is a pound. Where the misunderstanding often comes in is that muscle is much more dense than fat, so that, by volume, it seems to weigh more. That is, a pound of muscle occupies less space than a pound of fat. In addition, because a pound of muscle burns more fat than a pound of fat, even at rest, by increasing your lean muscle tissue mass, you're helping your body burn more calories. But back to your question.
The Academy of Nutrition and Dietetics reports that men need 1.4 to 1.8 grams of protein per kilogram of body weight each day to build muscle mass. This means active men trying to build muscle should consume 0.64 to 0.82 grams of protein per pound of body weight each day. For example, a 160-pound man trying to increase his lean body mass should consume 102 to 131 grams of protein every day, and regularly participate in strength-building resistance exercises. Active men who regularly participate in endurance training have increased protein needs.